rodney l. wyatt t count arodney l. wyatt t count a . engineering department 8 north race street p o...

RODNEY L. WYATT ta .CountENGINEERING DEPARTMENT

8 NORTH RACE STREETP O BOX 589

GEORGETOWN. DELAWARE I99J302-855-7718

July 30, 1987

Mr. King GulleteR. D. 3 Box 347KLaurel, DE 19956 _ . .

R£F: RESIDENTIAL WATER SAMPLING

Dear Mr. Gullete: • . . . - . - . - .

As a public service, Sussex County is performing water quality tests in thevicinity, of the former Laurel Landfill site.

We expect to be in your area on Wednesday, August 5, 1987, I regret that :we are not able to give you more notice. If no one is at home, we cannormally use any outdoor tap. If you would like us to be there at a certaintime, or have any questions, please give me a call at (302) 855-7725.

Thank you for your cooperation.

Sincerely,

SUSSEX COUNTY /ENGINEERING. DEPARTMENT

Michael IzzoCivil Engineer

MIsjed -

SR200809

RODNEY L \VYATT

ENCHNELRING HIP \RTMLS I

X NORTH R\CF JPO BOX

January 18, 1988

Mr. Michael A. Apgar, P.G.Supervisor, Water Supply BranchDepartment of Natural Resourcesand Environmental Control

Division of Environmental ControlPost Office Box 1401Dover, DE 19903

REF: GROUNDWATER MANAGEMENT INVESTIGATIONSFOR SIX SUSSEX COUNTY LANDFILLS_____

Dear Mr. Apgar:

Enclosed are two (2) copies of the above referenced document as revised byour consultant> Roy F. Weston, Inc. in accordance to you previously sub-mitted comments. Note that several items such as the capping model ofthe Bridgeville Landfill, and the groundwater management zone models havenot yet been completed and shall be forwarded to you as amendments.

Thank you very much.

Sincerely,

SUSSEX COUNTY ENGINEERING DEPARTMENT

Michael A. IzzoActing County Engineer

cc: Mr. Frederick MertesMr. Tom Drew

MAI:jed

AR2QQ810

RODNEY L. WYATTSussex County Engineer

ENGINEERING DEPARTMENT

8 NORTH RACESTRtLTPO BOX W

GEORGETOWN. DELAWARE

MEMORANDUM

TO: Mr. Frederick MertesSussex County Administrator

FROM: PJW/'h Michael A, IzzoActing County Engineer

REF: GROUNDWATER MANAGEMENT INVESTIGATIONSFOR SIX SUSSEX COUNTY LANDFILLS_______

DATE: -January 20, 1988

Please substitute the attached report for the draft copy now i|hyour possession. 'Also, we must now make this available to thegeneral public. Additionally, individual citizens have requestedpersonal copies. My initial thoughts were, to deliver formal copiesto the libraries in the vicinity of each landfill with a notice tothe concerned citizens of their availability.

Please advise me as to how I should proceed.

cc: Robert V. Witsil, Jr., Esquire

MAI:jed

Attachment

AR2008

& *T _, X516r fi©W 3 NORTH RACE STREETSussex (Emimtr /3ss*SS!s P0 sox^U ^ >&*]Bfe Y je&ia GEORGETOWN, DELAWARE IW47ENGINEERING DEPARTMENT /:l3RSr"5"nS»WB 302-855-77(8

February 16, 1988

Mr. Tom DrewRoy F. Weston, Inc.Weston WayWest Chester, PA 19380

REF: MARCH 1988 SAMPLING POUND FOR THESUSSEX COUNTY LANDFILLS___________

Dear Mr, Drew:

Attached is a list of preferred samples to be taken in the nextsampling round; hopefully in March. Please schedule the datesfor sampling and coordinate with Mr. Michael Short of my staff.Also, for this sampling round, Sussex County has several requestsfor your consideration:

1. Please establish a set turn-around time for the *test results. From a public relations standpoint,it is important for us to have the results returnedin a timely manner. Would a thirty day time framebe possible?

2, Please make it a standard practice to test a fieldblank for both indicators and priority pollutantsat each site.

3. Please make it standard practice to list tax mapand parcel numbers with all residential samplings.

4. Please provide or direct me to a source of Federal• regulations for allowable levels of organic con-taminants .

Thank you in advance for your consideration of these requests.If you have any questions or comments, please do not hesitate tocall me at (302) 855-7725.

Sincerely,

SUSSEX CQUNTY/ENGINEERING DEPARTMENT

Micftael A. IzzoActing County Engineer

CC: Mr. Michael Short

MAI:jed

AR2008I2

A. ANGOLA

Monitor Wells

Indicators: All wellsPriority Pollutants: P-5 (20 ' ,50',90 ' ) , AS-4

Residential Wells

None

B- ANDERSON CROSSROADS

Monitor Wells

Indicators: All wellsPriority Pollutants:" AS-4, AXD-1, ASX-6

Residential Wells

Indicators & Stewart (2-30-14-241)Priority Pollutants: Miller (2-30-14-237)

C. BRIDGEVILLE

Monitor Wells

Indicators: All wellsPriority Pollutants: BD-1, BS-3, BS-4, BS-5, BS-6, BS-7

Residential Wells- ."."

Indicators &Priority Pollutants: Wilson (4-30-23-2.2)

Green (4-30-22-8)Pratt (4-30-23-1)Jones (4-30-22-7)Marshall (4-30-22-1.2)Cameron (4-30-22-1.1)Trailer Park No. 1 & No. 2(2) Trailer Park ResidencesKing (4-30-20-1)Ash (4-30-19-3)Country Glen Supply No. 1Country Glen Supply No. 2Mowbray (4-30-19-2.1)Truitt (4-30-20-38)

flR2008!3

*\ 1

flR2008l'i+

NORTH RACEP O BO\ <

May 26, 1988

Mr. and Mrs. King GulletteR. D. 3 Box 347KLaurel, DE 19956

KEF: RESIDENTIAL SAMPLING

Dear Mr, and Mrs* Gullette:

Sussex County is again requesting permission to enter yourproperty as part of our bi-annual testing program to sample waterquality of residential homes in the vicinity of Sussex CountyLandfills. If you recall, we sampled your residence last month.However, a laboratory accident destroyed the results. Therefore,we are 'forced to repeat the sampling.

We plan to be in your area on Thursday, June 2, 1988. Since thebest results are obtained from an inside tap, it would be helpfulif someone could be at 'home. If"~this is not possible, pleaseleave a note on your door to direct us to another source. If youwould like to arrange a specific time for us to be there, pleasecontact Michael Short of my staff at 855-7722.

The new test results should be available two weeks after samplingand can be obtained through our office or at your local transferstation office.

If you should have any questions or comments, please feel free tocontact my office. We regret any further inconvenience this maycause you and your family.

.Sincerely,


Michael A. IzzoAct ing County Engineer

cc: Mr. Michael Short

MAIijed

5R2008I5

cPARIMLNT

May 26, 1988

Ms. Sandra L. ThompsonRt. 3 Box 347PLaurel, DE 19956

REF: RESIDENTIAL SAMPLING

Dear Ms. Thompson:

Sussex County is again requesting permiss ion ~to" enter yourproperty as part of our bi-annual testing program to sample waterquality of residential homes in the vicinity of Sussex CountyLandfills. If you recall, we sampled your residence last month.However, a laboratory accident destroyed the results. Therefore,we are forced to repeat the sampling.

We plan "to be in your area on Thursday, June 2, 1988. Since the-best results are obtained from an inside tap, it would be helpfulif someone could be at home. If this is not possible, pleaseleave a note on your door to direct us to another source. If youwould like to arrange a specific time for us to be there, pleasecontact Michael Short of my staff at 855-7722.

The new test results should be available two weeks after samplingand can be obtained through our office or at your local transferstation office. ~

If you should have any questions or comments, please feel free tocontact my office. We regret any further inconvenience this maycause you and your family.

Sincerely,




MAX:jed

AR2008I6

tfmmgENGINEERING DLI'.\RTMENT

May 26, 1988

Mr. William M. WilleyRt. 3 Box 347JLaurel, DE 19956


Dear Mr. Willey:

Sussex County, is again requesting permission to enter yourproperty as part of our bi-annual testing program to sample waterquality of residential homes . in the vicinity of Sussex CountyLandfills. If you recall, we sampled your residence last month.However, a laboratory accident destroyed the results. Therefore,we are forced to .repeat the sampling.

We plan to be in your area on Thursday, June 2, 1988. Since the"best results are obtained from an inside tap, it would be helpfu-lif someone could be at home. If this is not possible, pleaseleave a note on your door to direct us to another source. If youwould like to arrange a specific time for us to be there, pleasecontact Michael Short of my staff at 855-7722.

The new test results should be available two weeks after samplingand can be obtained through our office or at your local transferstation office.

If you 'should have any questions or comments, please feel free tocontact my office. We regret any further inconvenience this maycause you and your family.

Sincerely,

SUSSEX COUNT* ENGINEERING DEPARTMENT

Michael A. IzActing County


MAI : je'd

SR2008I7

QJmmtg 8 NORTH RACtSTREETPQ BOV <KV

May 26, 1988

Mr. and Mrs. Michael HawrylyshynRt* 3 Box 347A1Laurel, DE 19956


Dear Mr. and Mrs. Hawrylyshyn:

Sussex County is again requesting permission to enter yourproperty as part of our bi-annual testing program to sample waterquality of residential homes in the vicinity of" S.ussex CountyLandfills. If you recall, we'sampled your residence last month.However, a laboratory accident destroyed the results. Therefore,we are forced to repeat the sampling.

We plan to be in your area on Thursday, June 2, 1988. Since the-best results are obtained from an inside tap, it would be helpfulif someone could be at home. If this is not possible, .pleaseleave a note on your door to direct us to another source. If youwould like to arrange a specific time for us to be there, pleasecontact Michael Short of my staff at 855-7722.

The new test results should be available two weeks after samplingand can be obtained through our office or at yourrlocal transferstation office.

If you should have any questions or comments , please feel free tocontact my office. We regret any further inconvenience this maycause you and your family.

Sincerely,

SUSSEX COUNTY/£tfSINEERING DEPARTMENT


cc: Mr, Michael Short

,MAI:jed

aR20Q8!8

dJmmtg_ NORTH RACESTRtETPQ

May 26, 1988

Delmar Freed Mills, Inc. ; _ _ _ _ _ _10C2 West Street _ _ _ _ _Laurel, DE 19956

REF: RESIDENTIAL SAMPLING _. ^ . . . . . . . .

Gentlemen:

Susse'x County is requesting permission to enter your property aspart of our bi-annual testing program to sample water quality ofresidential homes In the vicinity of Sussex County Landfills.

We plan to be in your area on Thursday, June 2, 1988. Since thebest results .are obtained from an inside tap, it would be helpfulif someone could be at home. If this is not possible, pleaseleave a note on your door to direct us to another source. If youwould like to arrange a specific,. time for us to be there, pleasecontact Michael Short of my staff at 855-7722.

The test results should be available two weeks after sampling andcan be obtained through our office. qr_ _ a t your local transferstation office.

If you should have any questions or comments, please feel free tocontact my office. - " "

Sincerely,

SUSSEX CQUNTY^^INEERING DEPARTMENT

Michael A. Izz<Acting County Engineer


MAI:jed

SR2008I9

VOLUME IV

SUSSEX' COUNTY LANDFILL NO. 5104(e) LETTER RESPONSE

INFORMATION

APPENDICES 1-2 AND J

flR2QQ82G

APPENDIX 1-2

ANALYTICAL RESULTS

flR20082

- PRELIMINARY HYDROGEOLOGIC EVALUATIONOF SIX LANDFILLS IN SUSSEX COUNTY, DELAWARE

Abraham Thomas, P.G.Principal !nvesti gator/

Project Manager

Walter M. Lefs, P.G.Manager

Earth Sciences Department

February 1980

ROY F. WESTON, INC.Consultants/Designers

Weston WayWest Chester, Pennsylvania 19380

W.O. Nosf 1638-01-01 and 1631-09-01

flR200822

w £i p*

SECTION 8

LANDFILL NO. 5 - LAUREL

8.1 SITE DESCRIPTION

Sussex County Landfill No. 5 is located near Horsey's Grove Church,just off Route ^9^ (Figures 3-1 and 8-2). The s-ite encompasses anarea of 39 acres, serving an estimated population of 12,000. Thetotal usable volume of Landfill No. 5 was estimated at 396,000 cubicyards. Soil classification of Landfill No. 5 area is considered tobe a combination, as classified by the USOA Soil Conservation Service,of Klej (KI) and Osier (OS). Both are loamy sand with rapid permea-b i l i t y and a depth to seasonal water table of zero to two feet.

Landfill No. 5, at present, does not have provisions for an environ-mental control system such as an impermeable liner or facilities forcollection and treatment of leachate.

8.2 HYDRQGEQLQGIC SETTING AND ANALYSIS

8.2.1 Geology

As part of this subsurface investigation, five test wells were d r i l l e dwithin this landfill area. The samples from these test holes wereexamined to determine the type and distribution of the various sub-surface materials. Monitor wells, which consisted of four-inchdiameter 40 Schedule PVC pipe and screen with a slot size of 0.016inch, were installed in each of these test sites. The depth of the"wells varied from 30 to 50 feet. The shallow wells in this landfillwere installed with more screen to allow, the ground water fluctuationwhfch may result from Irrigation pumping activity around this l a n d f i l l ,The location of these wells are given in Figure 8-2 and the test wellconstruction details are listed in Table 8-1. Well logs are given inAppendix A of this report.

According to the plan of operation, the refuse thickness in this land-f i l l is about 12 feet. The Wells LS-1 and LS-3 were located in thefill area and encountered refuse of 11 and four feet of thicknessrespectively. The other three wells were outside the f i l l area.The refuse is underlain by highly permeable Pleistocene sand withsome gravel and ocassional thin lenses of s i l t or clay.

8-1

3R20Q823

-24

Location Rasidancas & Water Watts

Scafe r - 1 Mila

Saafordf 13 Concord

Jonas X-Roads24

Gumboro

RGURE 3*1 LANDFILL NO. 5 LOCATION MAP

8-2

m \^/ -—*•

303

&O*

3ccooa

Q

CM«Ul(TO£

8-3AR200825

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3 — a*2 *** p«. ^ '-;?£'• I** i-> .

n

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— fs. r+* o<o >o *~ «O3

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8-4

8.2.2 Ground Water

8.2.2.1 Ground Water Flow

The approximate configuration of water table in the l a n d f i l l for 7November 1979-is given tn Figure 8-2. The ground water flow is ina northerly direction. The depth to ground water varied from eightto 12 feet. The water levels in all the wells on 7 November 1979were about a food deeper compared to the measurements in September1979- As can be seen from the cross section given in Figure 8-3,the bottom of the refuse in the area of Well LS-1 is below the watertable. This situation allows direct contamination of ground water.Ground water elevations from shallow Well LS-4 and the deep Well LD-1which are located close together do not show any potential for ver-tical leakage.

8.2.2 Ground Water Quality

The results of analyses conducted on ground water samples collectedfrom the landfill monitor wells are given in Table 3-2.

Wells LS-1 and LS-3. which actually penetrate refuse, show the highestlevels of contamination. W h i l e the remaining wells on the periphery,of the landfill would meet drinking water standards with the exceptionof iron and in some cases manganese. Iron' and manganese seem to benaturally in excess of drinking water standards throughout the region.

Well U3-1 may be considered to represent background water quality.Well LS-4 and LD-1 are downgradtent wells and show no indication ofleachate contamination. Well LDr1, the deep well, shows s l i g h t l ylower concentrations in general than Well LS-4, the shallow well.

Generally, the contamination does not appear to occur in heavy con-centrations, although this may be a function o,f insufficient timehaving passed for leachate to fully develop.

8-5

flR200827

Landfill No. 5A

110

i *v£i*?(*f*\*/{J*rSs

50

Note: Horizontal Seal* 1 in. =- 500 ftSee Figure Q~2 tor Locationof Cross Section

RGURE 8-3 CROSS SECTION THROUGH SITE (SECTION A-A')

8-6

5R200828

Note: All concentrations are given In milligrams per liter (mg/1),with the exception of pH which Is given in pH units, andspecific conductance which Is given Jn micromhos/cm.

8-7

SR200829

Table 8-2

WATER QUALITY DATA SUMMARYLANOFILL NO. 5 - LAUREL

WellsParameter LS-1 LS-2 LS~3 kS-4 LD-1

Chemfcal Oxygen Demand 208.0 9.9 220.0 U.3 ^0.2

Total Dissolved Solids 459.0 50.0 829.0 82.0 15.0

PH 5*9 5.2 6.3 4.6 5.6

Antnonia Nitrogen . 11.2 7.0 30.8 8.4 7.0

Total Organic Carbon 99.0 19.0 71.0 11.0 - 8.0

iron - 126.3 2.13 121.0 2.84 0.57

Manganese 4.2 <0.02 1.50 0.05 0.

Chloride 81.5 7.3 148.0 10.1 5.2

Specific Conductance 600.0 87.0 1200-0 130.0 38.0

10.1.4 Landfill No. k - Anderson Cross Roads

• The l a n d f i l l site is anderlain by highly permeable sanda nd g r a ve 1.

• This l a n d f i l l , at present, does not have provisions Far anyenvironmental control system such as impermeable liner orfacilities for collection and treatment of leachate.

• The depth to ground water varies from 9.5 to 17 feet.

• The flow of ground water is in a westward direction and isgenerally laminar with some potential for vertical leakage.

• The shallow Well AXS-3 can be considered as representativeof background water quality.

• The downgradient well AXS-2 shows some elevated parameters whencompared to Well AXS-3- Except for COO, iron and manganese,the concentrations of the parameters tested in Well AXS-2are within the l i m i t s set for drinking water quality.

• Deep Well AXO-I shows elevated concentrations of severalparameters when compared to Well AXS-3. Whereas the shallowWe.l 1 AXS-£f adjacent to AXD-f shows parameters that are wellwithin the background.

• The difference in quality between Well AXD-1 and the generalquality of the shallow wells on-site may be 4,fr*ributedeither to changes in water quality with increasing depthor the influence of an off-site source.

10.1.5 Landfill No. 5 - Laurel

• The landfill site Is underlain by highly permeable sand andgravels.

• Thrs landfill, at present, does not have provisions for anyenvironmental control system such as impermeable liner orfacilities for collection and treatment of leachate.

• The depth to ground water varied from eight to 12 feet.

• The grourid water flow is in a northerly direction and is -generally laminar in nature.

• Well LD-1 may be considered to represent background waterq ua 1 i ty.

• Shallow Wells LS-1 and LS-3( which actually penetraterefuse, show the highest level of contamination.

10-3

AR20Q83Q

• The downgradient Wells LS-4 and LD-1 indicate no leachatecontaminat ion.

10.1.6 UndfM 1 Ho. 6 - Omar

* This landfill site is underlain by sand and gravt.1 ofPleistocene age with a layer of dark gray silty clayencountered at a depth of about eight to 10 feet belowsurface,

• This landfill, at present, does not have provisions forany environmental control system such as impermeable lineror facilities for collection and treatment of leachate.

• This is the only landfill in the county using an areamethod of f i l l i n g involving little or no excavation.

* The depth to ground water varied between 1.1 to 5.28 feetbelow ground surface.

• The ground water flows in a northwest direction andthe flow is laminar in nature.

•. Well OS-I shows no evidence of leachate and may beconsidered to represent background water quality.

• Wells OS-3 and OS-4 which are located on the downgradientside shew contamination to some extent.

* Wells OS-2 and OD-1 show some elevated chemical values whichare indicative of slight leachate contamination.

• The leachate appears to follow a shallow flow regime.

10.2 RECOMMENDATIONS

10-2.1 Landfill No. 1 - BrTdgeville

* Construct two more monitoring wells on the upgradient sideto better define the ground water configuration under thelandfill*

* Conduct another set of sampling and analysis as soon aspossible to confirm the results of the first test and todetermine the degree of change in quality since the firstsampling.

• Cover the landfill with clay material to minimize infiltra-tion.

10-4

flR20083

1

Table 5

WATER QUALITY DATA SUMMARYLANDFILL NO. 5 - LAUREL

Wells

Parameter LS-1 LS-2 LS-3 LS-4 LO-1

Chemical Oxygen Demand 36.0 327.0 53.0 8.0 <4.0


pH "6.2 5.1 6.1 4.3 5.9

Ammonia Nitrogen ' 1.68 1.40 2.80 1.96 2*24

Total Organic Carbon 4.0 150,0 8.0 5.0 <1.0

Iron 50.OQ 65,00 40.00 3-50 0.86

Manganese 1.79 1 .03 0.59 <0.02 0.02

Chloride 7.6 27.8 15.2 7.8 4.4

Specific Conductance 630,0 360.0 360.0 100.0 33-0

Note: All concentrations are given in milligrams per liter (mg/1) with theexception of pH which is given In pH unfts and specific conductancewhich is given in micromhos/cm.

-9-

aR200832

Analytical data from April 1980 sampling rounds are presented in Table5. Across the board reductions in NH4-N concentrations were measured.Twenty significant concentration decreases were noted as follows:

Well LS-1 - COD, NH4-N, TOC. Fe, Mn, Cl~

Well LS-2 - NK4-N

Well LS-3 - COD, TDS, NH4-N, TOC, Fe, Mn, Cl~, Specific Conductance

' Well LS-4 - NH4-N, TOC, Mn

Well LD-1 - NH4-N, TOC

Eight significant increases were noted:

Well LS-2 - COD, TDS, TOC, Fe, Mn, Cl", Specific Conductance

The data indicates that Wells LS-1 and LS-3 are still contaminatedwith leachate, but not so heavily as in the first round' of chemicalanalyses. Water qualtiy has deteriorated notably in Well LS-2.Wells LS-4 and LD-1 continue to appear to be clear of leachatecontamination.

SR20Q833

TECHNICAL SERVICES SECTION •DIVtStOK OF ENVIRONMENTAL CONTROL .

DEPARTHENT OF NATURAL RESOURCES AM) ENVIRONMENTAL CONTROL"REQUEST FOR LABORATORY ANALYSIS

DATE SAMPLED i "} - i . SAMPLER CAR/ / BOAT/ / SPl.TT/

REQUESTER fiatotft &W RESULTS TO Ctet /£&£& /fotf fys?/v£

SAMPLE TYPE: STREAM VELL ^DOMESTIC WASTE

BIOLOGICAL SLUDGE BORING

INDUSTRIAL AIR

STP OTHER

SOURCE NAME ttfiffft £&S%f£f/ ~f NPDES DE -

.ODSESS Cfcsrtt £&.COMMENTS /INSTRUCTION

NPDES / / AMBIENT / / INTENSIVE / / CONTRACT

SAMPLING MODE 'GRAB 1^1 COMPOSITE: MPG.FROM:.

3 AS IN TO:

/ /

S/N '

OTHER / /

YR MO DAY HRYR MO DAY HR

TIDE THIO ADDED TO

C?,SE?VA7!ONS/COM::"KNTS ' -T

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ANACYSIS REQUEST C" |'yv 'S 13!LAB, LOG NO. ——— -1 SAT.DIS. 0\V"EN, nut /ISOD, -g/1COO, -ng/1

£?QJ* i - _ —=4=1 - 1 n4i.i\COI-CR, isirs II | , JSPEC/ COST), umhos/yj?H

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AR200835

- • ' ' I' ' "r ~ * ' '- -TECHNICAL SERVICES SECTION fS1' ' "

DIVISION, OF^ ENVIRONMENTAL CONTROL ""' ' ' 4DEPARTMENT OF NATURAL RESOURCES AND ENVIRONMENTAL CONTROL :**1 OF :*.*:.; *

REQUEST FOR LABORATORY ANALYSIS C"r^ iS-;* -*V(

DATE SAMPLED * - / * -**s» ^SAMPLER tZ tf +*C CAR/~/

REQUESTER £&f>4 \<&*&S RESULTS TO

TYPE: STREAM ____ VELL * DOME STIC WASTE__ ___ INDUSTRIAL ____ AIR

BIOLOGICAL SLUDGE BORING STP OTHER .

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flR200836

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ANA'LYSIS REQUESTLAB. LOC NO.: svr.01 S , OXYGEN, x*/l300, as/1

3 3 VI J-2^^

COD, -"3/1 1 3O*J IP/-? fCOLOR, t,MTS II ||JLR.-i^ITY, FTU II ' HSPEC, CCVD. uphcs/fctfcr** Y0<? 1 I52-&PH 1 fc.3 1 fr.VALK. ,T< A I CaC03 jl jlACIDITY rag/ I CaC03

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flR200837

L.

Analytical data from the August 1980 round of water samplescollected at Laurel are -presented in Table 5; In general, therewas an increase in contaminant concentrations in the wells ,although not all parameters in all the wells increased ; therewas no significant downward trend indicated by the analyticalresults . " ' "

8R200838

TECHNICAL SERVICES SECTION "DIVISION OF ENVIRONMENTAL CONTROL

DEPARTMENT OF NATURAL RESOURCES AND ENVIRONMENTAL CONTROLREQUEST FOR LABORATORY ANALYSIS . fifgfll fli &WP

DATE SAMPLED * ~ /Z '** SAMPLER <gtf.4*+ CAR/~/ BOAT/~/

REQUESTER b/ U&1&S RESULTS TO

SAKPLE TYPE: STREAM WELL ^DOMESTIC WASTE ____ INDUSTRIAL ____ AIR

BIOLOGICAL ______ SLUDGE ' BORING STP OTHER

SOURCE NAME tt't &s*r NPDES DE -

ADDRESS £*&rt£

COMMENTS/ INSTRUCTION

NPDES /__/ AMBIENT /__/ INTENSIVE /__/ CONTRACT /__/ OTHER /__/

SAMPLING MODE GRAB / / COMPOSITE: MFC- S/NFROM: YR____MO • DAY_____HR

BAS IK___________________ TO: YR_____MO_____DAY_____luf

Ti;£ TRIO'ADDED TO

OBS ERVATIONS/COMMENTS

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SAMPLE IDENTIFICATION

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DATE ACCEPTED ggX^______________ DATE COMPLETED "Z -

TIME ACCEPTED & •?>. *,J- _____________;________ACCEPTED BY

E^OCUMENT 40-08/78/10/4

,-.- ..AA2Q.Q839

ANALYSES REQUEST B._-*A, UOG SO,Z SAT.DIS. OXYGEN, mg/1BOD, rag/1COD, mg/1COLOR, UNITSTURMDITY, FTUSPEC, COND. umhos/**.PHALK. mg/1 CaC03

ACIDITY mg/1 CaCC>3

HARDNESS, mg/1CHLORIDE, mg/1 A//T. NITROGENLmg/lORGANIC N, mg/1AMMONIA N. mg/1 fjlNITRITE N. mg/1NITRATE N. rng/1 S&SULFATE, mg/1 S0$TOTAL P^ mg/1

SET. SOLIDS, ml/1T. SUSP. SLDS. mg/1N.V. SUSP. SLDS. mg/1V. SUSP. SLDS. mg/1T. SLDS. tDR/1N. V. T. SLDS. ag/1VOL. TOTAL SLDS. mg/1T. DIS, SLDS. mR/lW£% MOISTUREKB AS rng/1GREASE, ms/1PHENOL, ug/1TOC, rag/1IRON, ug/1COPPER, ug/1MANGANESE, ug/1CHROMIUM, UR/1SILVER, ug/1CALCIUM, uR/111ZINC, ug/1LEAD, ug/1NICKEL, ug/1CADMIUM, uR/1MERCURY, UR/1ARSENIC, ug/1 .SELENIUM ug/1"ftftrtVn

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SERVICES CTION ALJG ovi'DIVISION OF ENVIRONMENTAL CONTROL

DEPARTMENT 0? NATURAL RESOURCES AND ENVIRONMENTAL COHTREQUEST FOR LABORATORY ANALYSIS STA^ OF

OffiCE Of SOuO WAST!DATE SAMPLED SAMPLER CAR/ —— / ROATV —— / SPT.TT/-

REQUESTER• B

fifrw£t &W. RESULTS TO C i ALfaSfr /%&( - ftfds*

SAMPLE TYPE: STREAM WELL - DOMESTIC WASTE " " INDUSTRIAL AIR

BIOLOGICAL SLUDGE BORING sx* OTHEA

SOURCE NAME &%*€(. £/?/*?£ f/ ** J NPDES DE -

ADDRESS 4fr/ £&. -COMMENTS / INSTRUCTION

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MO DAY HRYR MO DAY HR

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DATE ACCEPTED jffi&fa* DATE COMPLETED #- 2 TU JrOjfytfs >o

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DOCUMENT 40-08/78/10/4

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HARDNESS, mg/1CHLORIDE, mg/1 ft*T. NITROGEN, mg/1ORGANIC N. mg/1AMMONIA N. mg/1 &&NITRITE S. mg/1NITRATE N. mg/1 /*ySULFATE, mg/1 S04 /irTOTAL P04 mg/1

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ANALYSIS REQUES'i <

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ParameterChemical Oxygen Demand•total Dissolved SolidspHtononia Nitrogentotal Organic CarbcnIronManganesetChloride"Specific Conductance

Table 5

WKTER QUALITY DMALftNEFILL NO, 5 - LAUREL

NOVEMBER 1980

Wells

Note: Ml concentrations are given in milligrams per liter fag/1) wLth theexception of pH which is given in pH units and specific conductancewhich is given in micrcmhos/cm.

Analytical data from the November 1980 water samples collectedat Laurel are presented in Table 5. There is a general decreasein concentrations of most of the parameters in all of the wells.There was an across 'the board decrease in the concentration ofmanganese. Well LS-3 showed decreases in all parameters with theexception of COD.

WESTON WAYWEST CHESTER. PA. 19380PHONE (2151 692.3030TELEX. 83-5348

19 December 1980

Mr. Rodney WyattSussex County8 North Race StreetP.O. Box 589Georgetown, DE 19947 W.O. No. 1631-09-02

Dear Rodney:

Please find the enclosed draft report on the fourthround of sampling and analysis from the six landfillsin the county.

If you have any questions, please do not hesitate tocontact me.

Very truly yours ,

ROY F. WESTON

Abraham Thomas, P.GProject Manager

AT/djenclosure

•AR2008lt5

SUSSEX COUNTY, DELAWARE LANDFILLSWATER QUALITY SAMPLING AND ANALYSIS

NOVEMBER 1980

Prepared byROY F. WESTCN, INC.

Weston WayWast. Chester, Pennsylvania 19380

W.O. No. 1631-09-02

SUSSEX COUNTY IANDFILLS

QUALITY

GeneralA fourth round of water quality sanples was taken from each of the fivewells at each of the six Sussex County landfill sites. Water levels were*measured at the time of sanpling, with the exceptions of the Onar andAndersen Crossroads landfills, the groundwater levels were generally lowerthan they were for the third sampling round. The sanples were taken aftera miniinum of 30 minutes of pjrping with a gasoline-powered lift p*np.This ensured that the sanples taken were representative of the ground waternear the wells. Ofte sanples were taken during the period of November 1980.

Upon collection the sanples were chilled in an ice chest. Sanples werereturned daily to the WESTCN Laboratory under refrigeration. Analyses per-formed included:

o Cbsnical Oxygen Demand (OCD)o Tbtal Dissolved Solids (IDS)o pHo -&imonia Nitrogen (NH.-N)o Total Organic Carbon (TOC)o Ircn (Fe)o Manganese (Mn)o Chloride Ion (Cl~)o Specific Conductance .

Additionally, sanples frcm the Angola landfill were analyzed for selectedheavy metals. Ihe analytical results are sunnarized in Tables 1 through 6for the six landfills. The analytical results are mixed/ all the landfillsshew scene increases and sane decreases in the concentrations of variolaschenical parameters. When the total nunber of analyses is considered,there appears to be a very slight decrease in concentration of sanecontaminants.

Tarv fill No. 1 - BridgevilleAnalytical data fron the fourth round of water samples collected at thissite are presented in Table 1. The data indicate no definite trend inwater quality. Although there was a significant reduction in Iron con-centration in all the wells.

Landfill Nb. 2 - StockleyAnalytical data fron the fourth round of water samples collected at thissite are presented in Table 2. Most of the wells, with the exception ofSS-3r show a trend of slight decreases in scene contaminants. Well SS-3shows increases in all parameters except antronia-nitrogen.

landfill No. 3 - AngolaAnalytical data fron the fourth round of water samples collected at thissite are presented in Table 3. Also, analytical data for samples collectedat this site in September and October are presented in Tables 3A and 3B.In general, with the exception of AS-1, the majority of parameters shewed"decreases in concentration since the thijrd round of water sampling. On

' a monthly basis, the results for September indicate decreasing ccntaminantconcentrations in AS-2 and AS-3, while the results fron AS-1 and AS-4 aremixed, and AD-1 shews increasing concentrations. Ofce results for Octobershew generally mixed results with each well having sane parameters thatincrease and sane that decrease.

The variation in concentration of the chemical parameters fron month tomonth illustrates the necessity for long term monitoring, in order toestablish statistical trends for changes in groun3water quality.

The analyses performed for selected heavy metals indicates generally verylew concentrations of these metals. In most cases the concentrationsindicated are the lower limits of detection for these metals, The analysesperformed in November indicate decreases in the concentrations of Ghranium,

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Mercury, and Leal for all the Angola wells. These changes in concentrationare not significant at the low levels indicated. The concentrations ofNitrate-Nitrogen, in all the wells, increased insignificantly in all thewells during November.

Landfill No. 4 - Anderson CrossroadsAnalytical data fron the fourth round of water samples collected at thissite are presented in Table 4. In general the analytical results aremixed with sane parameters increasing in concentration while other parametersdecreased. There were across the board decreases, in all wells, in theconcentrations of Manganese, and Chloride, and decreases in specificconductance.

Landfill No. 5 - LaurelAnalytical data fron the fourth round of water sarrples collected at thissite are presented in Table 5. There is a general decrease in concentrationsof most of the parameters in all of the wells. There was an across theboard decrease in the concentration of Manganese. Well I£-3 shewed decreasesin all parameters with the exception of OCO.

Lanifill No. 6 - OnarAnalytical data from the fourth round of water samples collected at this siteare presented in Table 6. There is no general trend for water quality atthis site. The analytical results are atfjnost evenly divided between in-creases and decreases in concentration. Well OS-4, with the exception of .Chloride and specific conductance, showed increases in all other parameters.

Conclusions

o There is no general trend indicated fay the analytical resultsof the fourth round of groundwater samples. The resultsare mixed, with sane parameters increasing and saneparameters decreasing in concentration. These variationsin concentration shew no uniform trend.

flR200850

o Of the 270 data points or parameters, analyzed duringthe fourth round of sanpling, 41.9% of the parametersincreased in concentration, 52.2% of the parametersdecreased in concentration, while 5.9% of theparameters showed no change.

Reccmnendations

o The variations in chemical concentrations, observedduring the sanpling rounds, illustrate the necessityfor long term monitoring of gxoundwater quality toestablish statistical trends. It is recamendedthat quarterly groundwater quality monitoring becontinued.

Table 1

DATA SUMMARYIANDFILL NO, 1 - BRIDGEVILLE

NOVEMBER 1980

Wells

Pararoter BS-1 BS-2 BS-3 BS-4Chanical Oxygen Desnand 7.00 435.00 2850.0 900.00Tbtal Dissolved Solids 72.00 948.00 .1314.0 638.00pH 5.20 4.80 6.1 5.20Armenia Nitrogen 0.70 0.70 19.0 0.84Total Organic Carbon 2.00 140.00 760.0 1.00Iron 0.52 27.10 367.0 0.52Manganese <0.02 0.49 3.0 <.02Chloride 4.10 24.00 95.0 3.60Specific Conductance 75.00 335.00 1450.0 52.00 110.00

Note: All concsitrations are given in milligrams per liter (ing/1) with theexception of pH which is given in pH units and specific conductancewhich is given in mcrartos/oru

SR200852

Table 2

WATER QUALITY DAEA SUMMARYLANDFILL NO. 2 - STOCKIS*

NOVEMBER I960

Wells

Paraneter SS-1 SS-2 SS-3 SS-4 SD-1Chenical Oxygen Demand <1.00 550.00 224.00 5.00 8.00Total Dissolved Solids 48.00 230.00 802.00 56.00 88.00pH 4.80 6.30 6.30 5.10 5.70Smnonia Nitrogen _ 1.40 = _21.30 4.50 2.20 .0.84Total Organic Carbon 1.00 31.00 460.00 1.00 1.00Iron 0.25 91.00 171.00 1.75 0.19Manganese <0.02 0.62 7.10 <0.02 <0*02:Chloride 6.20 27.70 190.00 5.30 8.20"Specific Conductance 80.00 455.00 1150.00 49.00 80.00

Note: All concentrations are given in milligrams per liter (mg/1) with theexception of pH which is given in pH units and specific conductancewhich is given in micranhos/cm.

flR200853

[email protected] Oxygen DemandTotal Dissolved SolidspHAimonia NitrogenTotal Organic CarbonIron _ManganeseChlorideSpecific Conductance

Table 3AWKCER QUALITY DATALANDFILL NO. 3 - ANGOLA

SEPTEMBER 1980

All concentrations are given in milligrams per liter (mg/1) with theexception of pH which is given in pH units and specific conductancewhich is given in micronbos/cm.

ParameterChemical Oxygen DemandTotal Dissolved SolidsFH£nrnonia NitrogenTotal Organic CarbonIronManganeseChlorideSpecific ConductanceSilverArsenic[BariumCadmiumChroniumMercury

SeleniumNitrate-Nitrogen

1MELE 3B

WATER QUALITY DATA SUM4AH*-IANDFILL NO. 3 - ANGOIA

OCTOBER 1980

Note: All concentrations are given in milligrams per liter (mg/1) with theexception of pH which is given in pH units and specific conductancewhich is given in miercntos/cm.

flR200855

TABI£ 3QUALITY DATA. SUMMARY

ZANDFILL NO. 3 - ANGOLANOVEMBER 1980

AS-4Chemical Q -gen Demand 750.000 633.000 14300.000 11300.000 75.000total Dissolved Solids 416.000 2206.000 10090.000 6420.000 204.000pH 8.300 7.700 6.700 5-600 5.600Ammonia Nitrogen 8.400 270.000 532.000 114.000 1.700total Organic Carton 140.000 225.000 4400.000 3500.000 24.000Iron 58.000 26.000 640.000 430.000 8.900Manganese 0.040 0.540 6.100 12.600 0.260Chloride 34.300 491.000 1266.000 379.000 30.000Specific Conductance 4300.000 4350.000 9500.000 5100.000 180.000Silver <0.020 <0.020 <0.020 <0.020 <0.020Amsenic ' <0.005 0.042 0.009 0.011 " 0.005Barium <1.000 <1.000 <1.000 \ 6.000Chronium <0.02 <0.02 <0.02 <Q.Q2 <<Ifercury <0.020 <0.020 <0.020 <0.020 <0.020

- Lead <0.020 0.060 0.230 0.180-' <0.02Seleniun <0.005 0.008 0.024 0.005 <0.005Nitrate-nitrogen 0.700 1.000 1.950 5.400 3.700

:1. M

Note: All ccncentraticns are given in milligrams per liter (mg/1) with theexcepticn of pB. which is given in pR units and specific conductancewhich is given in micronbos/on.

SR200856

TABUS 4

WA1ER QUALITY DATA SUM AFQTLANDFILL NO. 4 - ANDERSCN CROSSROADS

NOVEMBER 1980 ,

Hells

Parameter AXS-1 AXS-2 AXS-Chemical Oxygen DenandItotal Dissolved SolidspHArmenia NitrogenTotal Organic CarbonIronJtenganese.Chloride* Specific Conductance

Note: All concentrations are given in milligrams per liter (mg/1) with theexception of pH trfiich is given in pH units and specific conductance•which is given in micronhos/cm.

SR2Q0857

ParameterChsnical Oxygen DenandTotal Dissolved SolidspHSnroonia Nitrogentotal Organic CarbonIronManganeseChlorides.Specific Conductance

Table 5

WATER QUALITY DATA SUMMARYLANEFILL NO, 5 - IAUFEL

NCWEMBER 1980

Wells

Note: All concentrations are given in milligrams per liter (mg/1) with theexception of pfi which is given in pH units and specific conductancewhich is given in niicrcrrihos/an.

flR200858

Table 6

NAOER QUALITY DATALANDFILL NO. 6 - OMAR

NOVEMBER 1980

Wells

Parameter OS-1 OS-2 OS-3 OS-4Chemical O gen Demand 35.00 142.00 300.000 367.00Ttotal Dissolved Solids 82.00 330,00 970.000 528.00pH 4.60 5.70 7.300 6.40Armenia Nitrogen 2.20 3.60 31.40 3.40Total Organic Carbon 3.00 40.00 64.00 65.00Iron 0.61 "10.70 10.70 16.20:Manganese < 0.02 ' 0.25 0.46 0.20"Chloride —- — 1(h3Q JQ.QQ 151.00 20.00Specific Conductance 91.00 420.00 1400.00 260.00

Note: All concentrations are given in milligrams per liter (rng/1) with the. exception of pH which is given in pH units and specific conductancewhich is given in microrrtos/on.

flR200859

Table 7A


May 1981

Parameter LS-1 LS-2 LS-3 LS-4 LD-1

Chemical Oxygen Demand 16.00 624.00 30.00 13,00 28.00Total Dissolved Solids 191.00 521.00 177.00 72.00 111.00pH 6.80 5.40 6.00 4.80 6.30Ammonia Nitrogen 7.00 5.60 7.60 5.90 14.00Total Organic Carbon 5.00 225.00 145.00 1.50 " 7.50Iron 0.70 0.70 0.10 3.20 '4.60Manganese 0.02 0.41 0.02 .0.21 0.06JChloride 42.70 105.00 37.70 34.70 40.Specific Conductance 260.00. 578.00 216.00 115.00 102.00

Note: All concentrations are given in milligrams per liter (mg/1)with the exception of pH which is given in pH units andSpecific Conductance which is given in micromhos/cm.

~20~ flR200860

Analytical data from the February and May 1981 samplings are listedin Tables 7 and 7A.^~As with the other.landfills, the results aremixed. Some single" parameters such as iron in LS2 show a significantchange , but in general there is no overall significant trend. Anydifferences in parameter concentrations may reflect seasonal changes

SR20086

Table 7



Chemical Oxygen Demand 48.00 75.40 64.00 15,00 145.00Total Dissolved Solids 552.00 497.00 222.00 63.00 66.00pH " 5,97 4.97 5.82 4.70 6.02Ammonia Nitrogen 1.12 <0.28 3.36 1.40 0.84Total Organic Carbon 24.00 297.00 14.00 3.00 "9.00Iron 0.69 57.00 <0.02 0.04 <0.02Manganese 0.06 0.31 0.17 0.02 0.0Chloride 21.00 130.90 20.50 1.12 25.30Specific Conductance 658.00 627.00 248.00 114.00 122.00


~19~ SR200862

>x (ttmmtiiJOSEPH T. CONAWAY &S 9'38%& COURTHOUSE "COUNTY ADMINISTRATOR .JStlW SJ&JS S?»£a O«ORO1TOWN. DELAWARE !»»«:

August 28, 1981

Mr. Abraham Thomas, P.G.Assistant ManagerEarth Sciences DepartmentWeston WayWest Chester, Pennsylvania 19380

REFERENCE: Sussex County LandfillGround Water Quality Monitoring Program

Dear Mr. Thomas:

This letter serves as authorization for Weston, Inc. to proceed withwork as outlined in your August 4, 1981 letter to me concerning the abovereferenced program.

The scope of work will be as outlined in said correspondence to me.Only those costs incurred will be charged and they will not exceed theestimated probable cost of $33,589.00 over a period of one year withoutprior approval of the County.

In addition, the County expects to be invoiced for a total of $5,392.00for work Weston has completed, said work being: 1.) installation of fourteen(14) additional monitoring wells at Angola; and 2.) analyses of Angola samplesfor nine (9) additional parameters.

Once again, Sussex County looks forward to continued cooperation andsuccess in our work with Weston.

Yours truly.

Joseph T, ConawayCounty Administrator

JTC/sww

cc: Mr. John P. ArgoMr. George F. Purpur, Jr.

Rodney L. Wyatt

BR200863

WEST ON WAYWEST CHESTER. PA, 19380PHONE )?15) 692-3030TELEX 83-5348

16 October 1981

Mr. Rodney WyattSussex CountyEngineering Department8 North Race StreetP.O. Box 589Georgetown, DE 19947

Dear Rodney:

Please find the enclosed report on the sampling and analysisconducted in February and May 1981 for the six county land-fills.

If you have any questions, please give me a calL,

Very truly yours ,

ROY F. WESTON, INC.

Abraham Thomas, P.G.Assistant ManagerEarth Sciences Department

AT:d

Enclosure

SUSSEX COUNTY LANDFILLS, DELAWARE

WATER QUALITY SAMPLING AND ANALYSIS

FEBRUARY-AND MAY 1981

OCTOBER-1981

Prepared byROY F. WESTON, INC.

Weston WayWest Chester, PA 19380W.O. No. 1631-09-02

AR2Q0865

SUSSEX COUNTY LANDFILLS, DELAWAREWATER QUALITY SANPLING AND ANALYSIS

FEBRUARY AND MAY 1981

WATER QUALITY

General

Ground-water quality samples were taken from each of thewells of the six Sussex County landfill sites during Feb-ruary 1981 and again in May 1981. Water levels weremeasured at the time of each round of sampling. Waterlevel data collected from all the landfills for Februaryand May 1981 are summarized in Table 1. As can be seenfrom the table, water levels measured at the time of theMay sampling round indicate generally higher water levels.

Additional monitoring wells were installed at the Angolatransfer station during the period from February throughApril 1981. Locations of these additional monitoring -wellsare shown in Figure 1. Well PI was installed on the up-gradient side and away from the landfill to provide areal background ground-water quality data point. Atlocations P2, P3, P4 and P5, multiple wells were in-stalled to collect samples from different depths in theaquifer. Well P6 was installed on the southwestern sideof the landfill across Chapels Branch Creek. Depth andconstruction details of these wells are given in Table 2.

The samples were taken after a minimum of 30 minutes ofpumping with a gasoline powered lift pump. This ensuredthat the samples taken were representative of the groundwater near the wells. The samples were taken during theperiod of November 1981.

Upon collection, the samples were chilled in an ice chest.Samples were returned daily to the Weston Laboratory underrefrigeration. Analyses performed included:

Chemical Oxygen Demand (COD)Total Dissolved Solids (TDS)Ammonia Nitrogen (NH-"N)pHTotal Organic Carbon (TOO

flR200866

• Iron (Fe)• Manganese (Mn)• Chloride Ion (Cl~)• Specific Conductance.

Additionally, samples from the Angola Landfill were analyzedfor selected heavy metals. The analytical results are sum-marized in Tables 3 through 3A for the six landfills.

Landfill No. 1 - Bridgeville

Analytical data from ground-water samples in February 1981at this site are presented in Table 3 and the results fromthe May 1981 sampling are presented in Table 3A. The dataindicate a general, although slight, increase in the concen-trations of most of the parameters.

Landfill.No. 2 - Stockley

Analytical data from ground-water sampling in February and .May 1981, at this site, are presented in Tables 4 and 4A.The data indicate slight increases in most of the parameters"tested for between February and May 1981.

Landfill No. 3 - Angola

Analytical data from ground-water sampling in February 1981are presented in Table 5 and data from the May 1981 samplinground are presented in Tables 5A and 5B. The analytical re-sults are mixed, some parameters have decreased in concen-tration, while others, such as iron and chloride, haveincreased in concentration. The fact that the water tableintercepts the bottom of the refuse in the landfill may re-sult in a more uniform production of leachate, through theinteraction of ground water and refuse. Therefore, theanalytical results would vary less than if leachate weregenerated solely by recharge of rainfall through the refuse.If all the past analytical summaries for Angola are compared,it will be seen that there has generally occurred a gradualdecrease in the concentrations of most parameters throughtime,

Several new wells were installed prior to the May 1981sampling.round. A water table elevation map that incor-porates the new well data is shown as Figure 1. Figure 1shows that the swampy area, south of the landfill is aground-water discharge point. Table 5B lists the analyticalresults for the new wells; Well AS4 is included for comparisonpurposes. As can.be seen, with the; exception of iron and

SR20Q867

manganese which naturally occur in high concentrations, thenew wells show no contamination.

Landfill No, 4 - Anderson Crossroads

Analytical data from the February and May 1981 samplingrounds are listed in Tables 6 and 6A. The analyticalresults are mixed, with increases in some parametersand decreases in other parameters. Generally, therehas been a decrease in COD in all the wells except AXS-4,while iron and manganese have increased in concentration.In concentration, pH decreased which in turn would allowthe disolution of more metalic ions. Ammonia has alsoincreased in concentration.

Landfill No. 5 - Laurel

Analytical data from the February and May 1981 samplingrounds are listed in Tables 7 and 7A. As with the otherlandfills, the results are mixed. Some single parameterssuch as iron in LS2 show a significant change (57 ppm inFebruary and 0.7 in May), but in general there is nooverall significant trend. Any differences in parameterconcentrations may reflect seasonal changes.

Landfill No. 6 - Omar

Analytical data from the February and May 1981 samplingrounds are presented in Tables 8 and 8A. The resultsshow that/ generally, ammonia, iron, manganese and chlorideall increased in concentration. These changes may be theresults of seasonal fluctuations and/or the result of ageneral decrease in the amount of available recharge.

CONCLUSIONS

• 3?here is no definitive trend apparent in theanalytical results.

• Landfills 1 and 2 generally show slightincreases in the concentrations of mostparameters. While the other landfillsshow mixed results with some parametersincrease in concentration, other parametersdecrease.

• These changes in parameter concentrationmay be the results of seasonal changes" inthe ground-water recharge or changes in theamount of available recharge due to thedrought conditions of last year.

-3- AR2QQ868

RECOMMENDATIONS

Continue quarterly monitoring in order todetermine fluctuations in leachate concen-trations.

Collect samples from Chapels Branch Creeknear the discharge point indicated by thewater table map for Angola Landfill andanalyze for the same parameters to deter-mine the impact on the creek.

-4- flR200869

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ANGOLA LANDFILL WATER TABLE MAPMAY 1981

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Table 3

WATER QUALITY DATA SUMMARYLANDFILL NO. 1 - BRIDGEVILLE

February 1981

Wells

Parameter BS-1 BS-2 BS-3 BS-4 BD-1

Chemical Oxygen Demand 5.00 22.00 2100.00 2.00 1.00


pH 6.05 5.80 5.70 4.80 5 ".00

Ammonia Nitrogen 0.84 0.28 71.00 1.40 1.40

:Total Organic Carbon 1.00 12.00 950.00 7.00 2.00

Iron <0.02 <0.02 4.80 <0.02 <0.02

Manganese <0.02 <0.19 2.51 <0.02 0.08

Chloride 7.10 21.00 341.00 13.10 28.80

Specific Conductance 67.80 1700.00 2170.00 81.00 123.00


-10-flR200875

Table 3A


May 1981


Chemical Oxygen Demand 0.432 58.00 1188.00 3,00 7.00


pH 5.50 5.90 6.20 5.20 5.50

Ammonia Nitrogen' 5.60 6.20 62.70 13.40 5*.90

Total Organic Carbon <1.00 19.00 412.50 <1."00 2.5

Iron 0.30 9.50 6.20 0.10 0.20

-Manganese <1.02 0.31 0.97 <0.20 0.07

Chloride 29.80 52.60 697.00 31.80 51.60


Notes All concentrations are given in milligrams per liter (mg/1)with the exception of pH which is given in pH units andSpecific Conductance which is given in micromhos/cm.

flR200876

Table 4

WATER QUALITY DATA SUMMARYLANDFILL NO. 2 - STOCKLEY

February 1981

Parameter SS-1 55-2 SS-3 SS-4 SD-1

Chemical Oxygen Demand 11.00 99.00 50.00 81.00 1.00Total Dissolved Solids 34.00 246.00 700.00 39.00 76.00pH 5.20 7.00 7.15 5.43 6.30Ammonia Nitrogen <0.28 15.4 9.52 1.40 1.68Total Organic Carbon 1.00 28.00 14.00 1100 3_. 00Iron < 0.08 6.95 0.14 0.60 0.06Manganese . - 0.06 0.53 1.58 0.03 0.03Chloride , . 8.30 13.20 236.20 9.60 18.90Specific Conductance 59.00 380.00 1080.00 56.20 116.00


flR200877

Table 4A


May 1981

Parameters SS-1 SS-.2 SS-3 ~ SS-4 SD-1

Chemical Oxygen Demand 28.00 143.00 52.00 5.00

Total Dissolved Solids 75.00 293.00 650.00 102.00

pH 5.40 6.80 6.60 6.20

Ammonia Nitrogen 6.40 25.50 15.70 6.20

Total Organic Carbon <1.00 27.00 16.00 1.50

Iron 0.40 1.00 0.40 0.50

'Manganese < 0.02 0.39 2.40 <0.02

Chloride 21.80 42.70 217.00 46.60

Specific Conductance 34.00 525.00 1100.00 110.00


-13- 3R200878

WATER QUALITY DATA SUMMARYLANDFILL NO. 3 - ANGOLA

February 1981

Parameter AS-1 _ _ A_S-2 AS-3 AS~4 AD-1

Chemical Oxygen Demand 580.00 1576.00 7986.00 4450.00 31.00Total Dissolved Solids 628.00 1576.00 7986.00 4450.00 114.00pH 5.90 7,90 7.40 5.50 5.80Ammonia Nitrogen 10.36 193.00 450.00 103.00 1.40Total Organic Carbon 235.00 195.00 340.00 2600.00 11.00 ,Iron 0.15 12.10 120.00 136.00 0^15Manganese 0.91 0.03 0.97 9.40 0.21Chloride 65.00 14.40 1843.40 497.70 21.20Specific Conductance 6800.00 3300.00 8730.00 4000.00 140.00Silver <0.50 <0.50 < 0.50 <0.50 < 0.50Arsenic <0.005 0.025 0.062 0.026 <0.005Barium 0.28 0.21 ' 0.20 3.05 <0.02Chromium <0.05 <0.05 0,13 0.34 <0.05 •Mercury <0.0002 <0.0002 <0.0002 <0.0002 <0.0002Lead - - - - - <0.05 <0.05 0.22 0.37 0.07Selenium _ <0.005 0.012 0.076 0.025 <0.005Nitrate-Nitrogen

Note: 'All concentrations are given in milligrams per liter (mg/1)with the exception of pH which is given in. pH units andSpecific Conductance which is given in micromhos/cm.

SR20Q879

Table 5A


May 1981

Parameter AS-1 • AS-2 AS-3 AS-4 AD-1

Chemical Oxygen Demand 198.00 328.00Total Dissolved Solids 463.00 1556.00pH 6.60 7.60Ammonia Nitrogen 20.70 20.70 380.80Total Organic Carbon 59.00 84.00 1475.00Iron 96.00 0.70Manganese 1.25 0.05Chloride 72.40 407.00 1876.00Specific Conductance 650.00 3450.00Silver <0.05Arsenic <0.01 .Barium 0.28Chromium 0.07Mercury <0.001Lead < 0.05Selenium " <0.01 _.Nitrate-Nitrogen 0.0


-15- fl"R200880

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SR20088

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Table 6

WATER QUALITY DATA SUMMARYLANDFILL NO. 4 - ANDERSON CROSSROADS

February 1981

Parameter AXS-1 AXS-2 AXS-3 AXS-4 AXD-1


Total Dissolved Solids 40.00 380.00 510.00 47,00 91.00

PH 5.50 5.90 6.03 5.68 5.40

Ammonia Nitrogen 0.84 <0.28 <0.28 1.68 2.24

Total Organic Carbon 4.00 51.00 195.00 1.00 1

Iron 0.06 0.05 11.00 <0.02 <0.02

jManganese <0.02 28.20 15.00 0.03 0.02

Chloride 14.20 1.80 58.10 10.00 21.80


Note: All concentrations are given in milligrams per liter (mg/ljwith the exception of pH which is given in pH units andSpecific Conductance which is given in micromhos/cm.

4R200882

Table 6A


May 1981

Parameter AXS-1... AXS-2 AXS-3 AXS-4 AXD-1

Chemical Oxygen Demand 5.0 10.0 376.0 15.0 3.0Total Dissolved Solids 34.00 112.00 399.00 67.00 124.00pH 5.80 6.10 5.40 5.60 5.70Ammonia Nitrogen 6.20 5.20 4.50 4.80 5.60Total Organic Carbon <1.00 2.00 131.50 3.20 <L.OQIron 1.00 1.50 39.00 0.60 55.00Manganese <0.02 6.40 10.90 0.16 0.16Chloride 22.80 31.80 57.60 33.70 35.70Specific Conductance 51.00 137.00 437.00 74.00 142.00


-18-SR2QQ883

Table 7


February 1981


Chemical Oxygen Demand 48.00 75.40 64.00 15.00 145.00Total Dissolved Solids 552.00 497.00 222.00 63.00 66.00pH 5.97 4.97 5.82 4.70 6.02Ammonia Nitrogen 1.12 <0.28 3.36 1.40 0.84Total Organic Carbon 24.00 297.00 14.00 3.00 -9.00Iron 0.69 57.00 <0.02 0.04 <0.02Manganese 0.06 0.31 0.17 0.02 0.Chloride 21.00 130.90 20.50 1.12 25.3Specific Conductance 658.00 627.00 248.00 114.00 122.00


AR20088I»

Table 7A


May 1981

Parameter • LS-1 LS-2 LS-3 LS~4 LD-1

Chemical Oxygen DemandTotal Dissolved Solids 191.00 521.00 177.00 72.00 111.00pH 6.80 5.40 6.00 4.80 ' 6.30Ammonia Nitrogen 7.00 5.60 7.60 5.90 14.00Total Organic Carbon 5.00 225.00 145.00 1.50 7.50Iron 0.70 0.70 0.10 3.20 ~4.60Manganese 0.02 0.41 0.02 0.'21 0.06Chloride 42.70 105.00 37.70 34.70 40.70Specific Conductance 260.00 578.00 216.00 115.00 102.00


-20- SR200885

Table 8

WATER QUALITY DATA SUMMARYLANDFILL NO. 6 - OMAR

February 1981

Parameter OS-1 OS-2 OS-3 OS-4 OD-1

Chemical Oxygen Demand 11.00 56.00 299.000 1.00 12.00Total Dissolved Solids 65.00 232.00 1342.000 204.00 158.00pH 4.80 5.25 7.400 7.53 " 6.55Ammonia Nitrogen <0.28 1.96 105.00 1.102 0.70Total Organic Carbon '8.00 17.00 155.00 8.00 8/00Iron " <0.02 3.20 2.34 <0.02 3.30Manganese <0.02 0.15 0.21 0.14" 0Chloride 14.20 39.90 7.90 18.80 17Specific Conductance 105.00 320.00 2200.00 277.00 172.00


-21- SR200886

Table 8A


May 1981

Parameter OS-1 OS-2 OS-3 QS-4 OD-1

Chemical Oxygen Demand 271.00 34.00Total Dissolved Solids 64.00 259.00 1149.00 99.00 235.00pH 5.00 5.90 • 7.60 4.90 7.10Ammonia Nitrogen 5.90 5.30 71.10 2.80 6.20Total Organic Carbon 2.50 14.70 60.20 <1.00 3.50Iron ' 0.30 0.30 1.10 0.70 1.80Manganese <0.02 <0.02 6.50 0.32 0.04Chloride 36.70 49.60 277.00 43.70 39.70'Specific Conductance 93.00 308.00 1830.00 119.00 145.00


ftR200887

Table 5

VB2ER QUALITY DATA SUMMARYIANDFILL NO. 5 - IAUREL

NOVEMBER 1980

Chanical Oxygen Demand 179.00 1100.00 800.00 15.00 35.00Total Dissolved Solids 248.00 644.00 - 232.00 108.00 84.00pH 5.70 4.70 6.10 4.50 5.30Amonia Nitrogen 2.24 1.70 3.10 0.98 0.70total Organic Carbon 20.00 260.00 16.00 5.00 1.00Iron 61.50 60.50 16.70 0.42 0.2Manganese . 0.93 -0.26 0.21 < 0.02 < O.OiChloride 19.10 66.00 12.40 15.00 9.60Specific Corxluctance 270.00 620.00 220.00 100.00 44.00

Wells

Parameter LS-1 LS-2 LS-3 LS-4 U>1

Note: All concentrations are given in milligrams per liter (mg/1) with theexception of pH which is given in pH units and specific conductancewhich is -givai in micrcmhos/cm.

Analytical data from the November 1980 water samples collectedat Laurel are presented in .Table 5. There is a general decreasein concentrations of most of the parameters in all of the wells.There was an across "the board decrease in the concentration ofmanganese. Well LS-3 showed decreases in all parameters with theexception of COD.

AR200889

WESTON WAYWEST CHESTER. PA. 19380PHONE (2151 692'3030TELEX 83-5348

19 December 1980

Mr. Rodney WyattSussex County8 North Race StreetP.O. Box 589Georgetown, DE 19947 W.O. No. 1631-09-02

Dear Rodney;

Please find the enclosed draft report on the fourthround of sampling and analysis from the six landfillsin the county.

If you have any questions/ please do not hesitate tocontact me.

Very truly yours ,

ROY F. WESTON

Abraham Thomas, P.GProject Manager

AT/djenclosure

AR2QQ890

SUSSEX COUNTY, DELAWAREWATER QUALITY SAMPLING AND ANALYSIS

NOVEMBER 1980

Prepared bySOY F. WESTCN, INC.

Weston WayWest Chester, Pennsylvania 19380

W.O. No. 1631-09-02

flR20089

SUSSEX COUNTY IANDFILLS

WATER

GeneralA fourth round of water quality samples was taken fron each of the fivewells at each of the six Sussex County lanrifill sites. Water levels weretiraasured at the time of sampling/ with the exceptions of the Onar andAndersen Crossroads lanriflllq, the groundwater levels were generally lowerthan they were for the third sanpling round. Ihe samples were takai aftera minimum of 30 minutes of paiiping with a gasoline-powered lift p*rp.This ensured that the sairples taken were representative of the ground waternear the wells, The samples were taken during the period of November 1980.

Upon collection the samples were chilled in an ice chest. Samples werereturned daily to the WESTCN Laboratory under refrigeration. Analyses per-formed included:

o Chanical Oxygen Denand (OOD)o Total Dissolved Solids (IDS)o pHo Amonia Nitrogen (NH4-N)o Total Organic Carbon (TOC)o Ircsi (Fe)o Manganese (Mn)o Chloride Ion (Cl~)o Specific Conductance

Additionally saroles fron the Angola landfill were analyzed for selectedheavy metals. Ifte analytical results are sutnarized in Tables 1 through 6for the six landfills. The analytical results are mixed, all the landfillsshew sore increases and sane decreases in the concentrations of variouschenical parameters. When the total nurfcer of analyses is considered,there appears to be a very slight decrease in concentration of sanecontaminants.

5R200892

Landfill No. 1 * BridgevilleAnalytical data from the fourth round of water sanples oollectad at thissite' are presented in Table 1. The data indicate no definite trend inwater quality. Although there was a significant reduction in Iron con-centration in all the wells.

Landfill No. 2 - StockleyAnalytical data from the fourth round of water sanples collected at thissite are presented in Table 2. Most of the wells, with the exception ofSS-3, show a trend of slight decreases in some contaminants. Wall SS-3shows increases in all parameters except armonia-nitrogen.

Landfill No, 3 * AngolaAnalytical data from the fourth.round of water samples collected at thissite are presented in Table 3. Also, analytical data for sanples collectedat this site in September and October are presented in Tables 3A and 3B.In general, with the exception of AS-1, the majority of parameters showed"decreases in concentration since the third round of water sarrpling. Ona monthly basis, the results for Septsnber indicate decreasing contaminantconcentrations in AS-2 and AS-3, while the results from AS-1 and AS-4 aremixed, and AD-1 shows increasing concentrations. The results for Octobershow generally mixed results with each well having some parareters thatincrease and some that decrea.se.

The variation in concentration of the chemical parameters from month tomonth illustrates the necessity for long term monitoring, in order toestablish statistical trends for changes in groundwater quality.

The analyses performed for selected heavy metals indicates generally verylow concentrations of these metals. In most cases the concentrationsindicated are the lower limits of detection for these metals. The analysesperformed in November indicate decreases in the concentrations of Chromium,

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Mercury, and Lead for all the Angola wells. These changes in concentrationare not significant at the lew levels indicated. The concentrations ofNitrate-Nitrogen, in all the wells/ increased insignificantly in all thewells during November.

landfill No. 4 - Anderson CrossroadsAnalytical data fron the fourth round of water samples collected at thissite are presented in Table 4. In general the analytical results aremixed with scene parameters increasing in concentration while other parametersdecreased. There were across the board decreases/ in all wells, in theconcentrations of Manganese, and Chloride, and decreases in specificconductance.

Landfill No. 5 - LaurelAnalytical data frcm the fourth round of water samples collected at thissite are presented in Table 5. There is a general decrease in concentrationsof most of the parameters in all of the wells. There was an across theboard decrease in the concentration of Manganese. Well 15-3 showed decreasesin all parameters with the exception of CCD.

Landfill No. 6 - OnarAnalytical data fron the fourth round of water samples collected at this siteare presented in Table 6. There is no general trend for water quality atthis site. .The analytical results are almost evenly divided between in-creases and decreases in concentraticn. Well OS-4, with the exception ofChloride and specific conductance, showed increases in all other parameters.

Conclusions

o There is no general trend indicated by the analytical resultsof the fourth round of groundwater samples. The resultsare mixed, with sane parameters increasing and semeparameters decreasing in concentration. These variationsin concentration shew no uniform trend.

SR20Q895

L

o Of the 270 data points or parameters, analyzed duringthe fourth round of sarrpling, 41.9% of the parametersincreased in concentration, 52.2% of the parametersdecreased in concentration, while 5.9% of theparameters shewed no change.

Recccrmendations

o The variations in chemical concentrations,during the sanpling rounds, illustrate the necessityfor long term monitoring of groundwater quality toestablish statistical trends* It is reccnmendedthat quarterly groundwater quality monitoring becontinued.

flR200896

Table 1

WATER QUALITY DATA SUMMARYIANDFILL NO. 1 - RRJDGEVILLE

JCWEMBER 1980

Walls

Parameter BS-1 • BS-2 BS-3 BS-4 BD-1Chemical Oxygen Demand 7.00 435,00 2850.0 900.00 3.00Total Dissolved Solids 72.00 948.00 1314.0 638.00 122.00pH 5.20 4.80 6.1 5.20 5.10Armenia Nitrogen 0.70 0.70 19.0 0.84 0.84Total Organic Carbon 2.00 140.00 760.0 1.00 3.00Iron 0.52 27.10 367.0 0.52 " 0.18Manganese <0.02 0.49 3.0 <.02 0.04Chloride 4.10 24.00 95.0 3.60 14.40Specific Conductance 75.00 • 335.00 1450.0 52.00 110.00

Note: All concentrations are given in milligrams per liter (mg/1) with theexception of pH which is given in pH units and specific conductancewhich is given in micranhos/an.

flR200897

Table 2

WATER QUALITY DATA. StMIARYLANDFILL NO. 2 - STDCKLEY

NOVEMBER 1980

Wells

Parssretar SS-1 SS-2 SS-3 SS-4 SD-1Chanical Oxygen Demand <1.00 550.00 224.00 5.00 8.00total Dissolved Solids . 48.00 230.00 802.00 56.00 88.00pH 4.80 6.30 6.30 5.10 5.70Anmonia Nitrogen 1.40 21.30 4.50 2.20 0.84total Organic Carfcon 1.00 31.00 460.00 1.00 1.00Iron 0.25 §1.00 171.00 1.75Manganese <0.02 0.62 7.10 <0.02 <Chloride 6.20 27.70 190.00 5.30 8.20Specific Ccoiuctance 80.00 455.00 1150.00 49.00 80.00

Note: All concentrations are given in milligrams per liter (mg/1) with theexception of pH which is given in pH units and specific conductancewhich is given in microrihos/an.

flR200898

ParameterChemcal Oxygen DemandTotal Dissolved SolidsPHAmmonia NitrogenTotal Organic CarbonIrontenganeseChlorideSpecific Conductance

Table 2AWftlER QUALITY DATALANDFILL NO. 3 - ANGOLA

SEPTEMBER 1980

All concentrations are given in milligrams per liter (mg/1) with theexception of pH which is given in pH units and specific conductancewhich is given in ndcrattos/cm.

flR200899

TORTJ! 3B

WKCER QUALITY DATALANDFILL NO. 3 - ANGOLA

OCTOBER 1980

ParameterCtenical Oxygen DsnandTotal Dissolved Solidspa&rnonia NitrogenTotal Organic CarbonIronManganeseChlorideSpecific ConductanceSilverArsenicBarium <1.000 <1.000 < 1.000 . <9.250 < 1.000Cadodum <0.020 0.020 0.050 0.040' <0.020Chrcmium 0.030 0.060 0.060 0.050 <0.020Marcury 0.200 1.000 0.300 0.300" <0.200Lead 0.190 0.170 0.340 0.230 0.210Selenium <0.005 <0.005 <0.005 <0.005 <0.005Nitrate-Nitrogen 0.190 0.320 1.100 1.430 3.600

Note: ALL oDncentrations are given in milligrams per liter (mg/1) with theexception of pH which is given in pH units and specific conductancewhich is given in micrccrtos/on.

flR200900

TAEX2 3WAIER QUALITY DATA SUMMARYLANDFILL NO. 3 - ANGOLA

NOVEMBER 1980

ParameterChemical Oxygen DemandTotal Dissolved SolidspHArmenia NitrogenTotal Organic CarbonIronfenganeseChlorideSpecific ConductanceSilverArnsenicBariumChromiumMercuryLeadSeleniumNitrate-nitrogen

Note: All concentrations are given in milligrams per liter (mg/1) with theexception of pH which is given in pH units and specific conductancewhich is given in micrccrtos/cm.

flR20090i

TABIZ 4

NASER QUALITY DATA SUMMARYLANDFILL NO. 4 - ANDERSCN OCSSK3ADS

NOVEMBER 1980

Wells

Paraireter AXS-1 AXS-2 AXS-Chanical Gx en Demand 45,00total Dissolved Solids 652.00pH - 5.20/tfrmcnia Nitrog i 1.12Total Organic Carbcn 3.00Iron 0.40Jteiganese 0.02Chloride 5.80Specific Conductance 50.00

Note: All concentrations are given in milligram per liter (mg/1) with theaxcepticn of pH which is given in pH units and specific conductancewhich is given in micrcmhos/on.

flR200902

ParameterChemical Oxygen DemandTotal Dissolved Solids

NitrogenTotal Organic Carbon'IronManganeseChlorideSpecific Conductance

Table 5

WATER QUALITY DMAIANDFILL NO, 5 - IAIJPEL

NWE>EER 1980

Wells

Note: All concentrations are given in milligrams per liter (rrg/1) with theexception of pH which is given in pH units and specific conductancewhich is given in micronhos/cm.

R200903

Table 6

WATER QUALITY DATALANDFILL NO. 6 - CMAR

NOVEMBER 1980

Wells

Parameter OS-1 OS-2 OS-3 OS-4 - OD-1Chemical Oxygen Demand 35.00 142.00 . 300.000Total Dissolved Solids 82.00 330.00 970.000pH . 4.60 5.70 7.300Armenia Nitrogen 2.20 3.60 31.40Ibtal Organic Carbon 3.00 40.00 64,00Iron 0.61 10.70 10.70Manganese < 0.02 0.25 0,46Chloride 10.30 70.00 151.00Specific Conductance 91.00 420.00 1400.00

Note: All concentrations are given'in milligrams per liter Crng/1) with theexception of pH which is -given in pH units and specific conductancewhich is given in microntos/cm.

AR2Q09QI*

Table 7A


May 1981


Chemical Oxygen Demand. 16.00 624.00 30.00 13.00 28.00Total Dissolved Solids .191.00 521.00 177.00 72.00 111.00pH ' " 6.80 5.40 6.00 4.80 6.30Ammonia Nitrogen 7.00 5.60 7.60 5.90 14.00Total Organic Carbon 5.00 225.00 145.00 1.50 7.50Iron 0.70 0.70 0.10 3.20 4.60Manganese 0.02 0.41 0.02 0,21 0.06Chloride 42.70 105.00 37.70 34.70 40.70Specific Conductance 260.00 578.00 216.00 115.00 102.00


~20~ «R200905

Table 7


February 1981


Chemical Oxygen Demand 48.00 75.40 64.00 15.00 145.00Total Dissolved Solids 552.00 497.00 222.00 63.00 66.00pH 5.97 4.97 5.82 4.70 6.02Ammonia Nitrogen 1.12 ,<0.28 3.36 1.40" " 0.84Total Organic Carbon 24.00 297.00 14.00 3.00 9.00Iron 0.69 - 57,00 <0.02 0.04 <0.Manganese 0.06 0.31 0.17 0.02 0.Chloride 21.00, 130.90 20.50 1.12 25.Specific Conductance 658.00 627.00 248.00 114.00 122.00

u^i

P


flR200906

0px <£muituJOSEPH T. CONAWAY & 3l8%& COU*TMOO« °COUNTY ADMINISTKATOft j SSff =t-S S?lSa C*O*G«TOWN, OKL.AWAKC 1t»4

10a-ll«-770l

August 28, 1981

Mr. Abraham Thomas, P.O.Assistant ManagerEarth Sciences DepartmentWeston WayWest Chester, Pennsylvania 19380

REFERENCE: Sussex County LandfillGround Water Quality Monitoring Program

Dear Mr. Thomas:

This letter serves as authorization for Weston, Inc. to proceed withwork as outlined in your August 4, 1981 letter to me concerning the abovereferenced program.

The scope of work will be as outlined in said correspondence to me.Only those costs incurred will be charged and they will not exceed theestimated probable cost of $33,589.00 over a period of one year withoutprior approval of the County.

In addition, the County expects to be invoiced for a total of $5,392.00for work Weston has completed, said work being: 1.) installation of fourteen(14) additional monitoring wells at Angola; and 2.) analyses of Angola samplesfor nine (9) additional parameters.

Once again, Sussex County looks forward to continued cooperation andsuccess in our work with Weston.

Yours truly/

Xucr o.Joseph T. ConawayCounty Administrator

JTC/sww

cc: Mr. John P. ArgoMr. George F. Purpur, Jr.

Rodney L. Wyatt

AR2Q0907

WESTOM WAYWEST CHESTER, PA 19380PHONE 1215) 692-3030TELEX B3-5348

16 October 1981

Mr. Rodney WyattSussex CountyEngineering Department8 North Race StreetP.O. Box 589Georgetown, DE 19947

Dear Rodney : .

Please find the enclpsed report on the sampling and analysisconducted in February and May 1981 for the six county land-fills.

If you have any questions, please give me a call.

Very truly yours ,

ROY F. WESTON, INC.

Abraham Thomas, P.G.Assistant ManagerEarth Sciences Department

AT:d

Enclosure

flR200908

SUSSEX COUNTY LANDFILLS, DELAWARE

WATER QUALITY SAMPLING AND ANALYSIS


OCTOBER 1981

Prepared byROY F. WESTON, INC.

Keston WayWest Chester, PA 19380W.O. No. 1631-09-02

SR2Q0909

SUSSEX COUNTY LANDFILLS, DELAWAREWATER QUALITY SANPLING AND ANALYSIS


WATER QUALITY

General

Ground-water quality samples were taken from each of thewells of the six Sussex County landfill sites during Feb-ruary 1981 and again in May 1981. Water levels weremeasured at the time of each round of sampling. Waterlevel data collected from all the landfills for Februaryand May 1981 are summarized in Table 1. As can be seenfrom the table, water levels measured at the time of theMay,sampling round indicate generally higher water levels.

Additional monitoring wells were installed at the Angolatransfer station during the period from February throughApril 1981. Locations of these additional monitoring wellsare shown in Figure 1. Well PI was installed on the up-gradient side and away from the landfill to provide areal background ground-water quality data point. Atlocations P2, P3, P4 and P5, multiple wells were in-stalled to collect samples from different depths in theaquifer. Well P6 was installed on the southwestern sideof the landfill across Chapels Branch Creek. Depth andconstruction details of these wells are given in Table 2.

The samples were taken after a minimum of 30 minutes ofpumping with a gasoline powered lift pump. This ensuredthat the samples taken were representative of the groundwater near the wells. The samples were taken during theperiod of November 1981.

Upon collection, the samples were chilled in an ice chest.Samples were returned daily to the Weston Laboratory underrefrigeration* Analyses performed included:

Chemical Oxygen Demand (COD)Total Dissolved Solids (TDS)Ammonia Nitrogen (NH ~N)pH 4Total Organic Carbon (TOO

AR2009iO

• Iron (Fe)• Manganese (Mn)• Chloride Ion (Cl~)• Specific Conductance.

Additionally, samples from the Angola Landfill were analyzedfor selected heavy metals. The analytical results are sum-marized in Tables 3 through 3A for the six landfills.

Landfill No. 1 - Bridgeville

Analytical data from ground-water samples in February 1981at this site are presented in Table 3 and the results fromthe May 1981 sampling are presented in Table 3A. The dataindicate a general, although slight, increase in the concen-trations of most of the parameters.

Landfill No.' 2 - Stockley

Analytical data from ground-water sampling in February andMay- 1981, at this site, are presented in Tables 4 and 4A.The data indicate slight increases in most of the parameters"tested for between February and May 1981.

Landfill No. 3 - Angola

Analytical data from ground-water sampling in February 1981are presented in Table 5 and data from the May 1981 samplinground are presented in Tables 5A and 5B. The analytical re-sults are mixed, some parameters have decreased in concen-tration, while others, such as iron and chloride, haveincreased in concentration. The fact that the water tableintercepts the bottom of the refuse in the landfill may re-sult in a more uniform production of leachate, through theinteraction of ground water and refuse. Therefore, theanalytical results would vary less than if leachate weregenerated solely by recharge of rainfall through the refuse.If all the.past analytical summaries for Angola are compared,it"will be seen that there, has generally occurred a gradualdecrease in the concentrations of most parameters throughtime.

Several new wells were installed prior to the May 1981sampling round. A water table elevation map that incor-porates the new well data is shown as Figure 1. Figure 1shows that the swampy area, south of the landfill is aground-water discharge point. Table 5B lists the analyticalresults for the new wells; Well AS4 is included for comparisonpurposes. As can be seen, with the exception of iron and

-2- AR2Q09

manganese which naturally occur in high concentrations, thenew wells show no contamination.

Landfill No. 4 - Anderson Crossroads

Analytical data from the February and May 1981 samplingrounds are listed in Tables 6 and 6A. The analyticalresults are mixed, with increases in some parametersand decreases in other parameters. Generally/ therehas been a decrease in COD in all the wells except AXS-4,while iron and manganese have increased in concentration.In concentration, pH decreased which in turn would allowthe disolution of more metalic ions. Ammonia has alsoincreased in concentration.

Landfill No. 5 - Laurel

Analytical data from the February and May 1981 samplingrounds are listed in Tables 7 and 7A. As with the otherlandfills, the results are mixed. Some single parameterssuch as iron in LS2 show a significant change (57 ppm inFebruary and 0.7 in May), but in general there is nooverall significant trend. Any differences in parameterconcentrations may reflect seasonal changes.

Landfill No. 6 - Omar

Analytical data from the February and May 1981 samplingrounds are presented in Tables 8 and 8A. The resultsshow that, generally, ammonia, iron, manganese and chlorideall increased in concentration. These changes may be theresults of seasonal fluctuations and/or the result of ageneral decrease in the amount of available recharge.

CONCLUSIONS

• 3?here is no definitive trend apparent in theanalytical results.

* Landfills 1 and 2 generally show slightincreases in the concentrations of mostparameters. While the other landfillsshow mixed results with some parametersincrease in concentration, other parametersdecrease.

• These changes in parameter concentrationmay be the results of seasonal changes inthe ground-water recharge or changes in theamount of available recharge due to thedrought conditions of last year.

-3- 3R2Q09I2

RECOMMENDATIONS

• Continue quarterly monitoring in order todetermine fluctuations in leachate concen-trations .

Collect samples from Chapels Branch Creeknear the discharge point indicated by thewater table map for Angola Landfill andanalyze for the same parameters to deter-mine the impact on the creek.

flR2009!3

93r

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-V- ANGOLA LANDFILL WATER TABLE MAPMAY 1981 .

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flR2009i8-9-

Table 3


February 1981

Wells


Chemical Oxygen Demand" 5.00 22.00 2100.00 2.00 1.00


pH 6.05 .5.80 5.70 4.80 5.00


Total Organic Carbon 1.00 12.00 950.00 7.00 2.00

Iron <0.02 <0.02 4.80 <0.02 <0.02

Manganese <0.02 <0.19 2.51 <0.02 0.08

Chloride 7.10 21.00 341.00 13.10 28.80



flR2009!9

Table 3A


May 1981


Chemical Oxygen Demand 0.432 58.00 1188-00 _ 3.00 7.00


pH 5.50 5.90 6.20 5.20 5.50


Total Organic Carbon <1.00 19.00 412.50 <1.00 2.50

Iron 0.30 9.50 6.20 0.10 0.20

Manganese <1.02 0.31 0.97 <0.20 0.07

Chloride 29.80 52.60 697.00 31.80 51.60


Note; All concentrations are given in milligrams per liter (mg/1)with the exception of pH which is given in pH units andSpecific Conductance which is given in micromhos/cm.

-11- flR200920

Table 4


February 1981

Parameter SS-1 SS-2 SS-3 SS-4 SD-1

Chemical Oxygen Demand 11.00 99.00 50.00 81.00 1.00Total Dissolved Solids 34.00 246.00 700.00 39.00 76.00pH " 5.20 7.00 7.15 5.43 6.30Ammonia Nitrogen <0.28 15.4 9.52 1.40 1.68Total Organic Carbon 1.00 28.00 14.00 llOO .3.. 00,Iron <0.08 6.95 0.14 0.60 0.06Manganese 0.06 0.53 1.58 0.03 0.03Chloride 8.30 13.20 236.20 9.60 18.90Specific Conductance 59.00 380.00 1080.00 56.20 116.00

Note: All concentrations are given in milligrams per liter (mg/1)with the exception of pH which is given in pH units andSpecific Conductance which is.given in micromhos/cm.

flR20092

Table 4A


May 1981

Parameters SS-1 SS-2 SS-3 SS-4 SD-1

Chemical Oxygen Demand 28.00 143.00 52.00 5.00

Total Dissolved Solids 75.00 293.00 650.00 102.00

pH 5.40 6.80 6.60 6.20

Ammonia Nitrogen 6.40 25.50 15.70 6.. 20

Total Organic Carbon <1.00 27.00 16.00 . 1.50

Iron - 0.40 1.00 0.40 0.5

Manganese <0.02 0.39 2.40 <0.02

Chloride 21.80 42.70 217.00 46.60

Specific Conductance 34.00 525.00 1100.00 110.00


-13- flR200922

Table 5


February 1981

Parameter AS-1 AS-2 AS-3 AS~4 AD-1

Chemical Oxygen Demand 580.00 1576.00 7986.00 4450.00 31.00Total Dissolved Solids 628.00 1576.00 7986.00 4450.00 114.00pH 5.90 7.90 7.40 5.50 5.80Ammonia Nitrogen 10.36 193.00 450.00 103.00 1.40Total Organic Carbon 235.00 195.00 340.00 2600.00 11.00 .Iron ' 0.15 12.10 120.00 136.00 0 i 15Manganese 0.91 0.03 0.97 9.40 0.21Chloride 65.00 14.40 1843.40 497.70 21.20Specific Conductance 6800.00 3300.00 8730.00 4000.00 140.00Silver <0.50 <0.50 <0.50 <0.50 <0.50Arsenic ... ... . <0.005 0.025 0.062 0.026 <0.005Barium 0.28 0.21 0.20 3.05 <0.02Chromium <0.05 <0.05 0.13 0.34 <0.05Mercury <0.0002 <0.0002 <0.0002 <0.0002 <0.0002Lead <0.05 <0.05 0.22 0.37 0.07Selenium .. <0.005 0.012 0.076 0.025 <0.005Nitrate-Nitrogen ._ .

Note: All concentrations are given in milligrams per liter (mg/1)with the exception of pH which is given in pH units andSpecific Conductance which is given in micromhos/cm..

flR200923

Table 5A

WATER QUALITY DATA SUMMARYLANDFILL NO* 3 - ANGOLA

May 1981

Parameter AS-1 AS-2 AS-3 AS-4 AD-1

Chemical Oxygen Demand 198.00 328,00Total Dissolved Solids 463.00 1556.00pH 6.60 7.60Ammonia Nitrogen 20.70 20.70 380.80Total Organic Carbon 59.00 84.00 1475.00Iron 96.00 0.70 _

Manganese 1.25 0.05Chloride 72.40 407.00 1876.00Specific Conductance 650.00 3450.00Silver <0.05Arsenic <0.01 .Barium 0.28Chromium 0.07Mercury <0..001Lead <0.05Selenium " < 0.01Nitrate-Nitrogen 0.0

Note: All concentrations are given in milligrams per liter (mg/1)with .the exception of pH which is given in pH units andSpecific Conductance which is given in micromhos/cm.

-15-

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flR200925

o oc uo au w

Table 6


February 1981

Wells

Parameter AXS-1 AXS-2 AXS-3 AXS-4 AXD-1


Total .Dissolved Solids 40.00 380.00 510.00 47.00 91.00

PH 5.50 5.90 6.03 5.68 ' 5.40

Ammonia Nitrogen 0.84 <0.28 <0.28 1.68 2.24

Total Organic Carbon 4.00 51.00 195.00 1.00 1.0,^

Iron 0.06 0.05 11.00 <0.02 <0.02

Manganese <0.02 28.20 15.00 0.03 0.02

Chloride 14.20 1.80 58.10 10.00 21.80



-17- flR200926

Table 6A


May 1981

Parameter , AXS-1 ' AXS-2 AXS-3 AXS-4 AXD-1

Chemical Oxygen Demand 5.0 10.0 376.0 15.0 3.0Total Dissolved Solids 34.00 112.00 399.00 67.00 124.00pH " 5.80 6.10 5.40 5.60 5.70Ammonia Nitrogen 6.20 5.20 4.50 4.80 "5.60Total Organic Carbon <1.00 2.00 131.50 3.20 <1.00Iron 1.00 1.50 39.00 0.60 55.00Manganese <0.02 6.40 10.90 0.16 0,16Chloride 22.80 31.80 57.60 33.70 35.70Specific Conductance 51.00 137.00 437.00 74.00 142.00


-18- flR2QQ927

Table 7


February 1981


Chemical Oxygen Demand 48.00 75.40 64.00 15.00 145.00Total Dissolved Solids 552.00 497.00 222.00 63.00 66.00pH ; 5.97 4.97 5.82 4.70 6.02Ammonia Nitrogen 1.12 <0.28 3.36 1.40 0.84Total Organic Carbon 24.00 297.00 14.00 3.00 _9.00Iron 0.69 .57.00 <0.02 0.04 <0.02Manganese 0.06 0.31 0.17 0.02 0.Chloride .,. 21.00 130.90 20.50 1.12 25.Specific Conductance 658.00 627.00 248.00 114.00 122.00


-19-

AR200928

Table 7A


May 1981

Parameter • LS-1 LS-2 LS-3 LS-4 LD-1

Chemical Oxygen DemandTotal Dissolved Solids 191.00 521.00 177.00 72.00 111.00pH 6.80 5.40 6.00 4.80 6.30Ammonia Nitrogen 7.00 5.60 7.60 5.90 14.00Total Organic Carbon 5.00 225.00 145.00 1.50 7.50Iron • 0.70 0.70 0.10 3.20 '4.60Manganese 0.02 0.41 0.02 0.21 0.06Chloride 42.70 105.00 37.70 34.70 40.70Specific Conductance 260.00 578.00 216.00 115.00 102.00

Note: All concentrations are given in milligrams per liter (mg/ljwith the exception of pH which is given in pH units andSpecific Conductance which is given in micromhos/cm.

-20-QR200929

Table 8


February 1981


Chemical Oxygen Demand 11.00 56.00 299.000 1.00 12.00Total Dissolved Solids 65.00 232.00 1342.000 204,00 158.00pH ' 4.80 5.25 7.400 7.53 6.55Ammonia Nitrogen <0.28 1.96 105.00 1.102 0.70Total Organic Carbon -8.00 17.00 155.00 8.00 8.00Iron <0.02 3.20 2.34 <0.02 3.30Manganese <0.02 0.15 0.21 0.14 0.Chloride 14.20 39.90 7.90 18.80 17.Specific Conductance 105.00 320.00 2200.00 277.00 172.00


~21~ SR2Q0930

Table 8A


May 1981


Chemical Oxygen Demand 271.00 34.00Total Dissolved Solids 64.00 259.00 1149.00 99.00 235.00pH 5.00 5.90 7.60 4.90 7.10Ammonia Nitrogen 5.90 5.30 71.10 2.80 6.20Total Organic Carbon 2.50 14.70 60.20 <1.00 3.50Iron 0.30 0.30 1.10 0.70 "l. 80Manganese . <0.02 <0.02 6.50 0.32 0.04Chloride 36.7.0 49.60 277.00 43.70 39.70Specific Conductance 93.00 308.00 1830.00 119.00 145.00


-22-

flR20093

Table 6WAOER QUALITY DATALANDFILL NO. 5 -LAUREL.r<-'kr_ 1982

Parameter LS-1 LS-2 IS-3 LS-4 IJ>1

Ibtal Dissolved Solids NS 575.00 NS 33.00 316.00

pH NS 5.6 NS 4.2 6.0

Amutiia Nitrogen NS < .5 NS Q.7 0.7

Ibtal Organic Carbcn NS 215.00 NS 5.00 67.4

Ircn Sbluble NS 72.2 NS Q.20 57.7

Chloride NS 112.00 NS is. 7 41.7

Specific Ccnductance NS 800.00 NS 150.00 500.00

Note: All ccncentraticns are given in milligrams per liter (nig/1)with the exception of pH which is given in pH units andSpecific conductance which is given in microrihcs/an.

* Field MeasurementsNS-Nbt sampled this time

~12~ SR200932

Analytical data from the February 1982 sampling round is listedin Table 6. The results are basically the same when compared toOctober 1981 data, - This lack of change may be caused by the lackof recharge on the landfill.

R200933

TECHNICAL SERVICES SECTION . *_DIVISION OF ENVIRONMENTAL CONTROL

DEPARTMENT OF NATURAL RESOURCES AXD ENVIRONMENTAL CONTROL , \ "REQUEST FOR LABORATORY ANALYSIS , - ~ "

DATE SAMPLED' rKortJk / l^-^^L—— SAMPLER ^. Mjgn jtj-* CAR / T jr SOAT / / SPLIT

REQUESTER L \3 *. Ht -lM \ VT* - RESULTS TO

?AMPLE TYPE: STREAM____ WELL J\ DOMESTIC WASTE___>_ INDUSTRIAL^ ___ AIR

BIOLOGICAL SLUDGE BORING STP OTHER

SOURCE NAME'DU^^^CÂTU 3*>b " Nxo rf./ Ûfe NPDES DE

ADDRESS____________:______________. _________-_._.__

SAMPLING MODE CRAB / Z7 COMPOSITE MFG. S/NFROM: YR______ MO '_____ DAY_______ HR

BASIS . .. TO: YR MO DAY " HR~

THE ^ . THIO ADDED TO

:c: NTS/INSTRUCTION

iT-OG, XO.I S -fPLE IDEXrTFICATION

1 \ xi . *

7£y ; ^-^

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, C.AIR

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! _±L. __ • 0 ^ !"« j FK

! -S " "UR U«i ^ K - L-rt

.. _- ' < o -,J:..,-. it ._.n«.

•AR20093U

ANALYSIS REQl'ESTLABORATORY LOG NO.' SATURATIONIMS. OXYilEN, ir.g/1BOD, TC/In?D, re /-lU i.ORj VNITSTLRbirU TV, rTU jSPEC. i-COND., unhcsVcir, jcH . JA!.K ., rcg.'l CaCO. " -

ACIDITY, -.g/1 CaC03

HARDS'ES.5, ma/LCHLORIDE, r-.g/lT. NITROGEN, rng/1CR3A.MC N\,Tig/lAMMC.NI.A N.,mg/LNITRITE" N.,^g/l . rNITRATE N.,T.e7l V\N^ !SL'LrATE., ^g/1 S04 \V j

T~'TAL "-lO^PHCKUS, ng/1

SET. SOLI.DS, -1/1T. S:'-SP. 5LDS.. f^g/lN.V. SI'S?. SLDS.,me/lV. SL'SP. ST.DS.,r?.e/lTi'-TAL SOLIDS, rrg/1N. V. T. SLDS., 715/1VOT . TOT. SLDS. , m^/1T. 01S. s7T)S.., m3/l:, MOIST-l'RZ

Mc-AS, ~£/i - - -•'- EAS.E., T72/1

r-£\oi, -J2/1i:oc, -*T/I; -OS", -jg/1"•:??£.R, us/L[y,- :AN£SE, ue/L j!.----t-»vi;-M. US5/i -jI.-:LV=^,- us/i . j!:-;.c:':x, us'i-..xCV'^c--'! ' -

l- : :VF"*.," '.:;'':L !-.-.;. -;::•>:. •.«:/! .._.. 1-;.?-v-\-, -:g r - - I.j —— M'V, -. "l _J-•• >:M v. -.e/l ,^ -.' ' JJ - 1: . ^

fr; ..." -. V^/T--O .ri|jr. -f -r - "-/^/;oo ^ni". - ::. ^/-oo ni 21

750

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< 1001<- ICO \U1-3J< 10

i q^6L_ " .1 - 11 1

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SR3Q0935

. ' \ \ ( " - n* I \ I : v /-» *„ ,i - *

'•

- --

flR200936

TECHNICAL SErATICES S:^-^K_. .DIVISION OF ENVIRONMENTAL CONTROL

DEPARTMENT O.F NATURAL RESOURCES- AND . E.W IaON>5ENTAL COXTZOLREQUEST FOR LABORATORY ANALYSIS

DATE SAMPLED c3QS L. _____ SAMPLER xv . Lv" CAR 7<~7 BOAT / /" SPLIT 7™- - " — ~~" ' " "" "™ " — • —— —— " "'REQUESTER

<T "" n-c -<L<y -Oo i -X RHSULTS TO UU tt, , th-SAMPLE TYPE: STREAM' " WELL X DOMESTIC WASTE " INDUSTRIAL AIR

BIOLOGICAL " SLUDGE BORING STP OTHER

SOURCE NAME f$XXAA&>£ QxCrS -=°- 5 " Z-UAX-VJLX

ADDRESS•

^AMPUNG MODE GRAB i f *" " C OM?OS ITE

3ASINFROM:TO:

MFC .YR

SPDES DE

... . S/N ' 'MO DAY HR

.YR MO DAY HR

TIDE. -.._ .. . _......_. THIO ADDED TO :. . \ r" "i::":; _:....;•_. . . . ._ _ : ::_...

rc^rxr^/r-s^vuCTTOS- " UO U^U^l tV' q' — —— -—]?JJ£@.5?5? 75g5piIllTwy fa t«9^1ll

• - - . - - • £ x _ £'. ~n~~ 'HI

£* Mtft

1.0""-. 'NO.! S.--MPLE IDENTIFICATION

,

i

/— O'*' o*"*

1 -

TIMEir.hCP., OC.V.TR AIR

*

i

CHLOERES.

'

H.OW .

1

DEPTH,]FT.

--

y^^ ACCEPTED 3Y <

VS j DR

R200937

AS'ALYAS'AlYSIS PFQL'EST

LABORATORY LOG NO.\ SATURATIONPIS. C:\Yr.EN, n»c/lHOD, mi: /ICOD, me/1 . .COLOR, LMTSTi-Rhl^uY, FTUSFEC. C'N!)., urhcs/ciaPHALK., rg/1 C.3CQ.,

ACIDITY, Tg/1 CaC03

HARDNESS, re/LCHLORIDE, rs>/lT. SIT-^.EN", rg/1ORCiNIC S\,-i«/LA.VO-CS;A N,,-^/INI'RITF x:.,^«/lV » - - ^ s - — V — */TN i i --n , C. N . , ~ S, I ISL'LFATE, -g/1 SOiTOTAL ;-HOS?HOSUS, -g/i

SET. SOLIDS, ml/1T. SL'SP. SI,DS.,i?g/lN.V. SI'S?, SLDS.,r:i/iV. SIS?. SL3SM j?«/iTOTAL SOLIDS, rs/1S. V. T. SLDS.»ng/lVOL. TOT, SLDS. , rs/lT. DIS. SLDS., -g/1\ MMsru-^p'r^S.-e/lrR£A5E. -*a/l"HENOL. u«/lroc, =.5/i

t

i"ON\ «j,4/l•: ?:jr:R, ug/i!' ';:A::ESE, ue/iC-^'XIL-M, us/1'^i;V£R, ue/1"Al-:! >\ xjg/l-.;vc, uc/i'.rOf cfi/l ?:N"CKEL, UE/1 [:A:XK'>:. £/i ],.-V\-?Y, -JB/I y--•'-sjc, uc/i !p^'.-lNI/M, $/l }c...... ^ ,.,iP. 5, * " " 1r. <"•" .r"-=M. -V".-=0 rlir._ t'OLir.^-X, ,/lGO rl|.•p.-_li?*?Zi _ i PJLpL _l

/ ?

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<- O- 1* ' _L<30 1_Jf?-_-

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AR200938

.Measured by

Date

Field Measured

Field

jrir.g Drvic?

s ; "-" -- =. '-.• • • - -

""* If.^'/.'!*-,'1— /•-

"'at ex TU.ZIT -S -ex;. Ccrid .i •--pH

.

R200939

Table 6


July 1982


Total Dissolved Solids 192 608 426 94.0 384

pH 6.4 6.0 6.3 4.7 6.2


Nitrate Nitrogen 1.3 <0.2 3.9 1.2 <0.2

Iron Soluble 0.05 90* 22.7 0.15 59-. 3*

Maganese Soluble 0.58 0.93 0.48 0.07 0.32

Chloride 32.7 131 28.2 19.4 63.4

Specific Conductance* 360 850 600 135 500

Note: All concentrations are given in milligrams per liter(mg/1) with the exception of pH which is given in pHunits and Specific Conductance which is given inmicromhos/cm.

*Field Measurements.

flR2Q09l*0

The analytical results from the~July 1982 sampling round are listedin Table 6. Generally there is a slight increase in parameterconcentrations which may be caused by more leachate movement. Slightincreases were noted in TDS, pH and Cl.

AR20091*

Table 6


Parameter LS-2 LS-4 LD-1 LD~1D+ LD-IQ

Total Dissolved Solids 678 112 571 595 33

pH 6.1 4.9 6.1 - : 6.1 6.0

Ammonia Nitrogen 0.79 <0.03 0.10 0.17 <0.03

Nitrate Nitrogen <0,2 0.74 <0.2 <0.2 <0.2

Iron Soluble 63 0.16 87 99 0.11

Maganese Soluble 1.46 <0.02 0.52 0.53 <0.02

Chloride 129.7 37.7 94.9 93.6 3.7

Specific Conductance* 920.0 120 650 650 40

Note: All concentrations are given in milligrams per liter(mg/1-J with the exception of pH which is given in pHunits and Specific Conductance which is given inmicromhos/cm. LS-1 and LS-3 not sampled this quarter,

* Field Measurement+ Duplicate**Blank

-13- '

Analytical data from the October 1982.sampling rounds are listedin Table 6. The water table at the site dropped .over 2.5 feetwhen compared to the water level three months ago. This is themost significant drop in water level for all of the landfills.As expected, some o£L the parameters increased in concentrationdue to smaller dilution of the leachate. The TDS, pH and chlorideincreased in concentration.

AR2009U3

'JOSEPH S. TOMALAVAGE, P.-G.PROJECT MANAGER

ABRAHAM THOMAS, P.G.ASSOCIATE MANAGERGEOSCIENCES DEPARTMENT

DECEMBER 1982

PREPARED BYROY F, WESTON, INC.

WESTON WAYWEST CHESTER, PA 19380

W,0. NO, 1631-10-01

SECTION 8

LANDFILL NO. 5 - LAUREL

8.1 SITE DESCRIPTION

Landfill No, 5 is located west of the Laurel Airport, betweenCounty Road 494 and Route 24 (Figure 8-1). The site covers39 acres with approximately 32 acres underlain by refuse.Landfill operations began 11 May 1970, and the site was closed11 August 1979. The site is presently operated as a transferstation.

The site is underlain by permeable, fine to medium sand withgravel and occassional thin lenses of silt and clay. The watertable ranges in depth from 6 to 12 feet below ground surface.Water level data from the five monitor wells (Figure 8-2) onthe site indicate that the general ground-water flow directionis north. The ground-water gradient is 0.002.

The refuse is estimated to be 12 feet thick and it was evidentfrom one of the monitor wells, well LS-1, that a portion ofthe refuse in the vicinity of that well is in contact withthe water table. The potential rate of leachate productionis 42,077 gpd, with 40,469 gpd attributed to recharge and1,608 gpd .attributed to ground-water inflow.

8-1

^^_^ - -T>^o^ ^ ^ Biff Mills Bridge\ •

3° ' " "^ ^-

*9 /

,"

- -I HD

JC -- O

D

LEGENDEstimated Leachate Plume «—-•»—Surface Water Sample PointU — Upstream

r ~ -» - *k* \ D — Downstreamuefn. *_ ji< * *• \ s • —«. ——————— • - _ — • • —• Private WeitSCALE: TIN » 2000FT * -\ 4 Groundwater Flow Direction

FIGURE 3-1 LANDFILL #5 — SITE LOCATION

8-2

(0

Zooo

ui

QCO

o

u.az

QC

O

CO

8-3 SR2009U7

8.2 SURFACE WATER RECEIVING GROUND-WATER DISCHARGE

Culver Ditch (west of the site) and Holly Ditch (east of thesite) are the nearest surface water bodies that potentiallymay receive ground-water discharge from the vicinity of thelandfill. During the field sampling, done in October 1982,these drainage ditches were found to be dry. Although, itis likely that during wetter portions of the year the ditcheswould contain flowing water*

The ground-water velocity for the site was estimated to be0.15 ft/day, based upon a gradient of 0.002 and a hydraulicconductivity, or permeability of 73 ft/day (Johnston, 1976,Sundstrom and Pickett, 1969), or 53 ft/yr. Assuming 9years for leachate production and migration, the leachateplume should extend approximately 477 feet downgradient. Since -Culver Ditch and Holly Ditch were found to be dry as far asCounty Road 492, it is apparent that ground-water dischargeto the ditches is intermittent. Also, the ditches flow gen-erally parallel to the ground-water flow direction, so thatleachate will enter the ditches through lateral dispersion whichoccurs at a much slower rate than longitudinal dispersion, ordown gradient flow.

%

Assuming a worst case, that the portion of Culver Ditch near-est th% landfill receives ground-water discharge 6 months outof the year and that the upper 5 feet of the aquifer willprovide discharge to the Ditch, then the percentage of leachate-contaminated ground-water can be estimated. Assuming flowperpendicular to the Ditch through a cross-sectional lengthof the landfill (closest to the ditch) of 1,140 ft and anaverage contaminated aquifer thickness of 35 feet then the

8-4

2cross-sectional area of flow is 39,900 ft . The potentialdischarge is then equal to the permeability 72 ft/day or

2546 gpd/ft times the gradient, 0.002, times the cross-sectionalarea. This results in a potential ground-water flow of 43,571gpd. If the upper 5 feet provide the discharge to the ditch then14% or 6,100 gpd of leachate-contaminated water may enter theDitch. This is a worst case estimate and does not appear toactually happen. Since the ground-water elevation contours,shown on Figure 8-2, do not indicate any ground-water moundbeneath the site there is little or no likelihood of lateralflow towards the Ditch, and, as mentioned earlier, lateraldispersion of the leachate plume would be much slower than thedowngradient dispersion, it is probable that, at worst, onlya small fraction of the potential leachate-contaminated dis-charge may reach the ditch. Given the_ground-water flow rate,leachate would not be expected to discharge to the Ditch downgradient of the landfill for some years (10 .to 30) to come.

8.3 CHANGES IN WATER QUALITY

Figure 8-1 shows the location of the surface water sample points.Since there was no surface water directly up gradient of thelandfill, samples were collected from Culver Ditch and HollyDitch where surface flow was evident downgradient of the land-fill. The surface water samples were collected approximately5,500 downgradient of the landfill in October 1982, duringthe regular quarterly monitor well sampling period.

Table 8-1 lists the results of the analyses performed on thesurface water samples. The table also lists the results ofanalyses performed on the landfill monitor wells. The resultsfrom Well LS-4 are considered to be generally representativeof background ground-water quality, even though the well is

8-5

033

U•u

u<u4J -c3: u0)

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(U C 0) C -U QO C * rH > 0)

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flR200950

downgradient of the refuse cells and will eventually be con-taminated. The ground-water quality in Wells LS-1, LS-2 andLS-3 is representative of leachate in ground water.

The results of the surface water analyses indicate no directevidence of leachate in the surface water, as would be expectedgiven the distance of the samples from the landfill. The samplefrom Culver Ditch has slightly higher concentrations of mostof._the parameters tested than did the sample from Holly Ditch.It is likely that these results reflect the quality of theground-water discharging locally to the ditches, which isaffected by local conditions, such as the swamp areas fromwhich the samples were collected, and are not associated withthe landfill.

The monitor wells generally indicate that leachate has penetratedthe aquifer, to depths of 35 feet. Although the deep Well LD-1has elevated values of all the parameters tested, when comparedto Well LS-4, which is adjacent to Well LD-1, it is questionablewhether the results are indicative of leachate penetration todepth. Well LD-1 is 50 feet deep, while LS-4 is 30 feet deep; ifa leachate plume were spreading through the area then Well LS-4should show indications of leachate prior to or simultaneouslywith Well LD-1. Possible explanations for the difference inwater between the two wells are: refuse may have been emplacedin close proximity to Well LD-1 and the pumping of the well forsampling purposes may result in leachate being drawn into it/ orthe well may" intercept a slug of high density leachate which hassunk into the aquifer. Given the relatively -small difference indepth between the wells, a high density leachate plume would haveto be very small in order to miss Well LS-4 and enter Well LD-1.It is likely that leachate from nearby refuse is being drawn intothe well as the result of sample pumping.

8-7

flR20095i

The concentrations for three indicator parameters, Cl, TDS,and NH--N were plotted through time and shown on Figures 8A,SB and 8C. On the average, Cl and TDS show slight increasingconcentration trends. The trend for NH^-N is erratic, but onthe whole, the average concentration of NH--N in the down-gradient wells does not appear to increase significantly.The background well, LS-4, showed a concentration of NH--Nin October 1982 that exceeded the average of the downgradientwells, which suggests that leachate may be beginning to reachthe well. However, succeeding samples from Well LS-4 indicatethat the NH--N concentration has decreased to below the down-gradient average. In general, the plots suggest that leachateproduction may not have reached its maximum volume or concen-tration as yet.

8.4 EXTENT OF LEACHATE PLUME

The dashed line on Figure 8-1 shows the estimated extent ofthe leachate plume. This is based upon the estimated ground-wat^r velocity in the vicinity of the .site"." Therefore, theleachate plume may extend 400 to 500 feet downgradient of thelandfill, although Well LS-4 does not show high concentrationsof leachate under the northern end of the landfill, Well LD-1,adjacent to LS-4, appears to be contaminated. So, in the ab-sence of off-site ground-water quality data, a distance of500 feet downgradient is assumed for the edge of the plume.

8.5 WELL LOCATION AND FUTURE WATER DEVELOPMENT

Figure 8-1 shows the location of 59 domestic and agriculturalwater supply wells within one mile of Landfill No. 5. Withthe exception of the wells north and west of the landfillwhich appear to be near the estimated edge of the leachateplume, no wells are in danger of contamination by landfillleachate. It is doubtful that the leachate plume extends

3-8

SR200952

OlE

300 r

200

100 |Average of Downgradiant Wells

1 I

-§1980 £ §, -g 1981 § 2 g 1982§ -§c -. c w ii <^ — -0> !? 03 ^ O^3 U< o o

Time

FIGURE 8-A LANDFILL #5 — CHLORIDE CONCENTRATIONVS. TIME

900

700

S so°E

300

100

Average of Downgradient Wells

^ i 1^ >• ^ I I*S 1 1981§ 2 | 1982 §

1 < SO O iT2 2" «Tlmt

FIGURE d-B LANDFILL #5 — TOTAL DISSOLVED SOLIDSCONCENTRATION VS. TIME

3-9 flR200953

30 r

of Downgradient Wells

Background Well

C V

FIGURE 8-C LANDFILL #5 — AMMONIA-NITROGENCONCENTRATION VS. TIME

8-10

as far as is estimated, so it may be several years before thedomestic wells north and west of the landfill are actually indanger of contamination.

Discussions with the County planners indicate that three single-home lots just west of County Road 497, approximately 4,000feet west of the landfill, and one single lot, approximatelythree-quarter of a mile east of Landfill No.-5, on the southside of Route 24, were developed in 1982, but no new largescale development is foreseen for the area.

8-11

QR200955

Table 6


January 1983

LS*2 LS-4 LD-1 LD-1D+ LD-10**


pH 6.2 4.7 6.2 6.2 5,4

Ammonia Nitrogen 1.6 < 0.03 1.3 _ 1•2 _ < 0.03

Nitrate Nitrogen <0.2 1.98 0.37 0.37 <0.2

Iron Soluble 26.0 <0.05 159.0 153.0 <0.05

Manganese Soluble 1.48 0.02 0.78 0.78 <0.02

Chloride 177.0 40.6 184.0 151.0 3.1


Notes All concentrations are given in milligrams per liter(mg/1) with the exception of pH which is given in pHunits and Specific Conductance which is given inmicromhos/cm. LS-1 and LS-3 not sampled this quarter,

+ - Duplicate**- Blank

flR200956

Analytical data from the January 1983 sampling rounds are listed in Table 6.'The water table at this site rose oveK1.6 feet when compared to the waterlevel three months ago (October 1982). Significant increases in ammonianitrogen and chloride concentrations were noted. The total dissolved solidsand specific conductance also increased slightly. These increases can beattributed to an increase in leachate production at the landfill.

flR200957

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WES~ ~ CHSSTER. PA. 19330PHC^XE -CIS! 692 X30TELE-EX S3-534S

16 June 1983

Mr, Robert MartinDirector of Economic Development/Public Works

P.O. Box 598Georgetown, DE 19947 W.O. No. 1631-09-03

Dear Bob:<

Please find enclosed a ccropy of the ground-water resultsfor the two domestic well_s that were sampled during theApril 1983 sampling rouno,-!. It may be noted that thedomestic well in Laurel r.inas nitrate levels significantlyabove drinking water" stancidards. This nitrate level maybe causing problems from ; the septic field. Iron andmanganese concentrations in the Laurel well are alsoslightly above drinking v-water levels.' The domesticwell near Bridgeville has-, with the exception of theiron content, all the parcrameters within drinking water .standards. The chemical . results from these wells do notreflect any impact from c~he landfills.

Should you have any quest: —ions, please do not hesitate tocontact me.

Very truly yours,

ROY F. WESTON, INC.

Scott R. StanleyProject ScientistGeosciences Department

SRSrd

Enclosure

flR200960

WATER QUALITY "DATA SUMMARYDOMESTIC WELLS

April 1983

Laurel BridgevilleDomestic Domestic DWS

Total Dissolved Solids 188 78 500pH 4.9 5.5Ammonia Nitrogen <0.03 <0.03Nitrate Nitrogen 25.2 - - 5 . 3 10Iron Soluble 0.36 0.58 0.3*

* *Manganese Soluble . 0.07 0.05 0.05Chloride 24.2- 12.5 250.0**Barium Soluble 1.12 0.17 1.0Chromium Soluble <0.05 <0.05 0.05Lead Soluble <0.05 <0.05 0.05Selenium Soluble. <0.01 <0.01 0.01Cadmium Soluble <0.05 <0.05 0.01

*Specific Conductance 230 90

Note: All concentrations are given in milligrams per liter(mg/1) with the ^exception of pH which is given in pHunits and specifrLLc conductance which is given inmicromhos/cm.

DWS - Drinking Water Standards for State of Delaware publicwater suppliers

*- Field measurements

**-.Secondary Drinkizng Water Standards

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WATEH QUALITY DATA SUMMARYDOMESTIC WELLS

July 1983

Laurel BridgevilleDomestic ^Domestic

Total Dissolved Soli—s 154 66

pH* • 4.8 5.3

Ammonia Nitrogen <0.03 0.03

Nitrate Nitrogen 19.8 4.82

Iron Soluble <0.05 1.24

Manganese Soluble 0.06 0.08

Chloride . 34.7 25.6

Barium Soluble 1.18 0.32

Chromium Soluble <0.05 <0.05

Lead Soluble <0.05 <0.05

Selenium Soluble <0.01 <0.01

Cadmium Soluble <0.05 <0.05

Specific Conductance* 265 120

Note: All -concentrateons are given in milligrams per liter(mg/1) with the=. exception of pH which is given inpH units and specific conductance which is givenin micromhos/cnn..

* Field measurements

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WESTON WAY -WEST CHESTER.PA.19380PHONE, (215) 692 3030TELEX. 83-534S ' / ~ . "

7 December 1983

Mr. Robert MartinDirector of Economic Development/Public WorksP.O. Box 598Georgetown, DE 19947 W.O. No. 1631-09-04

Dear Bob:

In response to your verbal request for additional samplingto be conducted in conjunction with the October 1983 quarterlysampling program, WESTONfs field team acquired the followingsurface and groundwater samples for analyses:

o two samples downstream of a leachate seep dis-charging into a creek adjacent to the StockleyLandfill.

o seventeen domestic groundwater supply well samplesin the vicinity of Laurel Landfill.

o samples from monitor wells LS-4 and LD-1 which areimmediately downgradient of.the Laurel Landfill.

o one irrigation well west of Laurel Landfill and onelivestock supply well approximately one mile west ofthe landfill.

Each sample was analyzed for total dissolved solids, ammonia-nitrogen , nitrate-nitrogen, iron-soluble, manganese-soluble,chloride, pH and specific conductance.

-Sampling-procedures and handling were identical to the quarterly" saiapling""" protocol *

flR200967

LAUREL LANDFILL

General

In "order to evaluate the potential impact of Laurel Landfillon the groundwater quality, 17 domestic wells, one irrigationwell and one livestock supply well in the vicinity of thelandfill were sampled. In addition, water samples from WellsLS-4 and LD-1 were collected and analyzed to compare groundwaterquality iHimediately downgradient of the landfill to the supplywells.

According to information obtained from personal interviews withsome of the well owners, the depths of the domestic wells rangefrom 50 to 80 feet; the irrigation and livestock supply wellsare 138 and 120 feet deep, respectively. The domestic wellsare commonly constructed of 2-inch diameter galvanized, stainlesssteel or PVC pipe with a specified length of screen. Well designof the irrigation well consists of a 12-inch diameter casingwith 80 feet of screen; the livestock supply well is constructedof 4-inch diameter casing and screen.

The domestic wells are frequently situated downgradient of the"owner's septic field or are located so that other potentialsources' of groundwater contamination, for example, a chickenhouse or a neighbor's septic field, could effect the quality ofwater in the well. In addition, commercial fertilizers aresupplemented to the groundwater discharged from the irrigationwell. Many of the supply wells sampled in the investigation aredowngradient to the irrigation system.

Water Quality

Analytical data from the water samples collected in October 1983at the supply wells and Wells LS-4 and LD-1 are presented inTable 1.

Supply wells in the vicinity of the landfill show no indicationof contamination from leachate migration from the Laurel Landfill.All of the chemical parameters for the supply wells are below drinkingwater standards, except for nitrate which exceeded 10 mg/1 for allwalls. However, nitrate readings in wells LS-4 and LD-1 which arelocated downgradient of Laurel Landfill were 4.1 mg/1 and 3.3 mg/1,respectively. Ammonia-nitrogen concentrations were also in rela-tively low concentrations for these wells. The analytical dataimplies that high levels of nitrates in the supply wells do notoriginate from the Laurel Landfill, but are derived from either

fiR2GQ968

farming activities or the disposal of sewage. In the vicinityof-the Laurel Landfill, specific contamination sources wouldinclude; effluent from septic systems, application of ferti-lizers in irrigation systems and/or migration of contaminantsfrom livestock yards and/or chicken houses.

General

To assess the potential impact on surface water quality fromoverland leachate flow at the Stockley Landfill, sampling wasconducted at two locations downstream of a leachate seep whichdischarges into Sheep Pen Ditch, a small creek flowing south ofthe landfill. Visual examinations demonstrated that the leachateoriginates as a seep from the landfill and ultimately flows intoSheep Pen Ditch southwest of Well SS-3. Surface water sampleswere collected at locations approximately 10 feet and 1 miledownstream of the confluence of Sheep Pen Ditch and the leachatetributary.

Water Quality

Analytical data from the surface water samples collected inOctober 1983 from Sheep Pen Ditch are presented in Table 2.

Comparison of the data from the two locations suggest a minorimpact on surface water quality directly downstream of theleachate seep. Ammonia-nitrogen and iron-soluble have a slightlyhigher concentration in the upstream sample. However/ one miledownstream of the leachate seep, the chemical parameter concen-trations are reduced and the impact of the leachate seep on thesurface water quality is negligible.

CONCLUSIONS*

Based on the analytical data from surface and groundwater samplescollected in October 1983 from the Stockley and Laurel Landfillareas, the following conclusions can be made:

flR200969

o Laurel landfill - Supply wells in the vicinity of thelandfill have not been contaminated from leachatemigration. High nitrate concentrations in the supplywells are apparently derived from fanning activitiesand/or the disposal of sewage.

o Stockley Landfill - Leachate flowing into Sheep PenDitch produces only a slight impact on surface waterquality directly downstream of the point of leachateinflow. Parameter concentrations are reduced and theimpact of the leachate seep on the surface water qualityis negligible one mile downstream of the leachate seep.

Should you have any questions regarding this information, pleasedo not hesitate to contact me.

Very truly yours,

ROY F. WESTON, INC.

Abraham Thomas, P,G.Associate ManagerGeosciences Department

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"* - - , . - . — y ''fo H^ i-V CV\-CONCVlC DEVELOPMENT "'" f , <-lp2. J. . lrf.'W GEORGETOWN 1?ELAV\ ARE 1094 7

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)ec.er.bcr .15., 1983

Mr. and Mrs. William Maser - - •--R.D. 3, Box 347-GLaurel, Delaware 19956.." . . . . . " "

Dear Mr. and Mrs. Maser:

The:.:~asting originally "scheduled-:£cr Thursday, December 15,19""23 has been rescheduled for" Tuesday, January 3, 1984. at . ~ ~7:30 p.m. at the Laurel .Town Hall.

I am e-nclos.ing a copy of the analysis for the samplingwhich was per farmed in October, 19.83 .aha a copy of theDelaware Drinking Water Scancards which gives the maximumcontaminant levels -for different constituents found indrinkin.g water. - ..-:.

'We will review the analysis and answer any questions youmay have at this mee ting . I 1 ookr-f drvard to seeing you there...

I wish you.-and your family a very "Merry Christmas and avery Happy New Year. - -

Very truly yours, . .

Robert Wm. MartinDirector

Enclosures: " 2

cc : Joseph T. ConawayPatricia L. IsaacsAbraham Thomas

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-Arsenic (As) . . . . . . . . . . . . . . . . . . . 0.05•"Barium (Ba) . . . . . . . . . . . . . . . . . . . . 1.-•Cadmium (Cd) . . . . . . . . . . . . . . . . . . . . O.G10

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-"Foaming Agent. . . . . . . . . . . . . . . . . . . 0.5**Iron'(Fe). . . . . . . . . . . . . . . . . . . . . 0.3*l/ead (Pb). . . . . . . . . . . . . . . . . . . . . . 0.05

--^Manganese (Mn) . . . . . . . . . . . . . . . . . . 0.05^Mercury (Hg) . . . . . . . . . . . . . . . . . . . 0.002

. "Nitrates as Nitrogen ( N ) . . . . . . . . . . . . . 1 0 .->Selenium (Se) ... . . . . . . . . . . . . . . . . 0.01^Silver (Ag) ^ . . . . . . . . . . . . . . . . . . 0.05 .**Sulfate (SOi;).-. . . . . . . . . . . . . . . . . 250.**Kydrogen Sulfide (KjS) . . . . . . . . . . ' . , . . 0.05-"Total Dissolved Solids . . . . . . . . . . . . . 500.**Zinc (Zn).,. . . . . . . . . . . . . . . . . . . . 5.•>Endrin . . . . . . . . . . . . . . . . . . . . . . 0.0002->Lindane . . . . . . . . . . . . . . . . . . . . . . . 0.004-Hethoxychlor .................... 0.1^Toxaphene . . . . ' . . . . . . . . . . . . . . . . 0.005*2,4-D . . . . . . . . . . . . . . . . . . . . . . 0.1«2,4,5-TP Silvex . . . . . . . . . . . . . . . . . 0.01*Radiuro 226 £ 228 . . . . . . . . . . . . . . . . . 5 pC/1*Gross alpha particle activity (incl. radium 225

but excluding radon £ uranium) 15 pC/1

^Primary^-Secondary

flR200975

OFFICE OK D.RECTOR w<->>' C3> "'/Jvpv p ° aox 589COSCM!C DEVELOPMENT ''°--?/ ^ - % A GFO«G£-TQS*N DCLAWARE 199J7

AND *P'-BL-C WORKS - "^ i j£_ill'"< / / 50218^6-7701

Decor.ber 15, 1983

Mr. and Mrs. King GulletteR.D. 3, Box 347-KLaurel, Delaware 19956

Dear Mr. and Mrs, Gullette:

The meeting-originally scheduled for Thursday, December 15,1983 has been rescheduled for Tuesday, January 3, 1984 at7:30 p.m. ac the Laurel Town Hall, . . . . .

I atn enclosing a copy of che analysis for che samplingwhich vas performed in October, 1983 and a copy of theDelaware Drinking Water Standards which gives the maximumcontaminant: levels for different constituents found indrinking vatier.

We will review the analysis and answer any questions .youmay have ac this meeting. I look forward to seering you. there.

I wish you and your family a very Merry Christmas and a .very Happy New Year.

Very truly yours",


cc: Joseph T. ConawayPatricia L. IsaacsAbraham Thomas

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Maximum Contaminant Leveli °in K&3*terSubstance _ _

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••• __ ._ 0.OOU. . , . . - . - - • - • • • * -*Hethoxychlor . . . . . . - . . . . - • • • • • • - • -*Toxaphene . . . / . . . . . - • • • • • • • • • •*2 -b . . . . . . . . . . - - • - - — -• — - 0-a*234,5-TP Silvex . . . . . . . . . - . " . - • - - 0.01^Radium 226 5 228 . . . . . . . . . - - • • • • • •*Gross alpha particle activity (incl. radium 226

but excluding radon S uranium) 15 pC/1

^Primary

flR200978

O-FiCE OF DIRECTOR - " 7 £ f a IT - i V \ P°ECONOMIC DEVELOPMENT // J /X ^ 1 -A<\ . GKORGtTQWN DELAWARE 19947

ANDPUBLIC.WQBKS .. -~^ k J ° ° >;' /*£ oCS'BbB 77OI EXT 1325

December 15-,- 1933

Mr. and Mrs. Alton HastingsR.D. 3, Box ..331. ....Laurel, Delaware 1995.6

Dear Kirr—^nd I-ira . Kci;

The o'.aecing originally scheduled for .Thursday, Deceziber 15,1983 has been rescheduled for. .Tues-day..,- January 3, 1984 at7:30 p.m. at: the Laurel Town Hall.

I am enclosing a copy of the analysis for the samplingwhich was performed in October, 1983 and a copy of" theDelaware Drinking "Water Stancarjd-s~wh_icJi_ gives the r.axiinumcontaminant levels for" different co~ns~titu~ents found indrinking water. . . ...\..__._- --

We will ...review the analysis ami answer any questions youmay have at .this meeting. I look .forward t.o seeing you there

I_.wish you and your family a very Kerry Christmas and a .very Happy New Year. - " -

Very "truly yours,

Roc(e t Wm. MartinDirector

Enclosures: 2


RWM/pli

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DL - ..'-AKZ DRINKING WATTK STAN DA-OS"

CcntcTr.ir.cnt LevelSubstance^ _^ _ _ _ . .. .. Concentration in Kg/liter

-Arsenic (As) . . . . . . . . . . . . . . . . . . . 0.05"Barium (Ba) . ' . . . . . . ' . . . . . . . . . . . . l."Cadmium (Cd) . . . . . . . . . . . . . . . . . . . 0.010^Chloride (Cl). . ' . . . . . . . . . . . . . . . . 250.-Chromium (Cr). . . . . . . . . . . . . . . . . . . 0.05--Copper (Cu) . . . . . . . . . . . . . . . . . . . 1.

--Foaming Agent. . . . . . . . . . . . . . . . . . . C.5**Ir-on ("e). . . . . . . . . . . . . . .". . , , , . 0.3*Lead (Pb). . . . . . . . . . . . . . . . . . . . . . 0.05

-"Manganese (Mn) . . . . . . . . . . . . . . . . . . 0.05-Mercury (Kg) . . . . . . . . . . . . . . . . . . . 0.002-Nitrates as Nitrogen (N) . . . . . . . . . . . . . 10.-Selenium (Se) . . . . . . . . . . . . . . . . . . 0.01^Silver (Ag) . . . . . . . . . . . . . . . . . . . 0.05

SO ). . . . . . . . . . . . . . . . . . . . 250.Sulfide (H2S) . . . . . . . . . . . . . . . 0.05

--Total Dissolved Solids ..... . . . . - - . . . . 500.**Zinc (Zn)... . . . . . . . . . . . . . . . . . . . . 5.*Endrin . . . . . . . . . . . . . . . . . . .... . . . 0.0002•>Lindane . . . . . . . . . . . . . . . . . . . . . . O.OOU-Methcxychlor . . . . . . . . . . . . . . . . . . . . 0.1-Toxaphene . . . , ' . . . . . . . . . . . . . . . . 0.005•>2,M-D . . . . . . . . . . . . . . . . . . . . . . 0.1-2,4S5-TP Sil-vex . . , . . . . . . . . . . " . . . . 0.01-Radium .226 £ 228 . . . . . . . . . . . . . . . . . 5 pC/1-Gross alpha particle activity (incl. radium 226

but excluding radon & uranium) 15 pC/1

-Primary^-Secondary

flR20098i

HECTOR . *,./**£ US ,"£/ P O H O X S 6 9_ CWNDCt_A\\ARE 19347

AND .-* 1. 4 T-*.r"~: ~ .T •*-• ' i"77OT F.xr. 325

Dece-ber 15, 19S3

Xr. and Mrs. PhilliD CasselburvR.D. 3. 3ox 347-DLaurel, De 1 aware 19956 -;

Dear Mr. and Mrs. Casselbury:

The meeting originally scheduled for Thursday, December 15,1983 has been rescheduled for Tuesday, January 3, 1984 at .7:30 p.m. at the Laurel Totvn Hall. " ;~

I an enclosing a copy of the analysis for the s-attplingwhich was performed in October, 19S3 and a copy of theDelaware Drinking Water Standards which gives the. maximumcontaminant: levels for different constituents found indrinking water.

We will review the analysis and answer any questions younay have at this meeting. I look forward to seeing you there

I wish you and your family a very Kerry Christmas and avery Happy New Year.

Very truly yours,


Enclosures: 2


RWM/pli

flR200982

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'* " IT V.-.rZ U^iitr.:.^ ••.:.".? ST,-N^A?C^ :

Maximum Contaminant LevelSubstance . Concentration^ in Kg/1 iter

-Arsenic (As) . . . . . . . . . . . . . . . . . . . 0.05"Barium (5a) . . . . . . . . . . . . . . . . . . . 1.*Ca<2r.£um (Cd) . . . . . . . . . . . . . . . . . . . . O.C10

ftftChloride (Cl). . . . . . . . . . . . . . . . . . 250.•''Chromium (Cr). . . . . . . . . . . . . . . . . . . 0.05^Copper (Cu) . . . . . . . . . . . . . . . . . . . 1.*riuorid« (F) . . . . . . . . . . . . . . . . . . . 1.8

.ng Agent. . . . . . . . . . . . . . . . . . . 0.5(Fe). . . . . . ' . . . . . . . . . . . . . . , 0.3(?b). . . . . . . . . . . . . . . . . . . . . . . 0.05

Manganese (Xn) . . . . . . . . . . . . . . . . . . 0.05*Xercury (Kg) . . . . . . . . . . . . . . . . . . . 0.002*Kitrat€s as Nitrogen (N) . . . . . . . . . . . . . 10.^Selenium (Se) . . . . . . . . . . . . . . . . . . 0.01^Silver (Ag) . . . . . . . . . . . . . . . . . . . 0.05^^Sulfate (SOii). ................. 250.&*Kydrcgen Sulfide (K2S) * . . . . . . . . • . . . . . 0.05

il Dissolved Solids .............. 500.(Zn).,. . . . . . . . . . . . . . . . . . . . 5.. . . . . . . . . . . . . . . . . . . . . . 0.0002

^Lindane . . . . . . . . . . . . . . . . . . . . . . 0.004^Methoxychlor . . . . . . . . . . . . . . . . . . . 0.1^Tcxaphene . . . . ' . . . . . . . . . . . , . . . . 0.0052,4-D . . . . . . . . . . . . . . . . . . . . . . 0.12,4,5-TP Silvex . . . . . . . . . . . . . . . . . 0.01*Radium 226 £ 228 ................. 5 pC/1*Gross alpha particle activity (incl. radium 226

but excluding radon 5 uranium) 15 pC/1

^Primary

flR20098U

OFFLCE.OTQiREXTOR- ,. - - , - -V/*- . C3 i;£/Jy\ P ° 8°X 589ECONOMIC DEVELOPMENT . i j?JtJi *."v\,' GEC'RGE. TOWN DC LA A A RE 19347

AND.PUBLiC WORKS - ' ~ - ' . . " ^ g [ Jrj°fcj £ff <30^S55->.?701 EXT 32S" "~' De.cer.ber 15, 1983

Mr,'and-Mrs. Robert MurphyR.D. 3, Box 347-E ' ." . :Laurel," Delaware 19.956 :." . . . "._" ~ " . j " . . " . .

Dear ttr~. and Mrs. .Murphy:

The meeting _originally scheduled.-for"Thursday, December 15,19.83 has "been rescheduled for Tuesday, January 3, 1984 at7 :30 p. m." "at the Laurel To ~n Hall." " ;... .'

1 arn enclosing a copy of the analysis for the sair.plingwhich was performed in October, 1983 and a copy of theDelaware Drinking Water Standards which gives the rr.axinuncontaminant levels for different constatuents found indrinking water. . . . . .

We will review~the analysis and answer any questions youmay have at this meeting. I look forward to seeing you there.

I "wish you and your family a very Kerry Christinas and avery Happy -New Year.

Very truly yours,

Robert Wm. MartinDirector . .

Enclosures:" 2

cc: Joseph T. ConawayPatricia L», IsaacsAbraham Thomas

RWM/pli . . .

flR200985

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DL . >AFX DRIN>^-':'0 W>"»f^K . STANZA:

Maximum Ccnta-lnant LevelSubstance Concentration in Mi

^Arsenic (As) . . . . . ...... • •._•_.:._——_.——._—— °-°5-Barium (Ba) . . . . . . . . . . - . • • • • • - • !•^Cadmium (Cd> . . . . . . . . . . . . . - ._. - .- ._- -.;„ 0-Q10

A^Chloride ( C l ) . . . . . . . . . . , . . - • • • • 250.-'-Cnrcmium (Cr). . . . . . . . . . . . . . . . . . . 0.05

^-Cooper (Cu) . . . . . . . . . . . . . . . . . . . 1-*ide.(F) . - ,....-_...- • - ..- •_.——_^_- • - - 1-8.ng Agent. . . . . . . . . . . . . . . . . . . 0.5(Fe). . . . . . • . . . . . . . - . - • - - • • ° - 3(Pb). . . . . . - . . . . . . . - • - • - - • _ - • - °-05

•^Manganese (Mn) . . . . . . . . . . - • - • _ • - - • °-05-Mercury (Hg) . . . . . . . . . . . . - - • - - . - . • °-°02-Nitrates.as Nitrogen (N) . . . . . . - . - . - - - • 10.^Selenium (Se) . . . . . . . . . . . . - - . - • • - - .0'01^Silver (Ag) . . . . . . . . . . . . • • • • • • - °-05

**-Sulfate (SOi;)-'. . . . . . . - . . • • - - - - - 25°-**Kydrogen Sulfide (K^S) . . . . . . . . . . . - . - 0.05**Total Dissolved Solids.. . •" . .".;.".". • • "• •""- 500.

. . . . . . . . . . . . . . . - - • • • - - - °'004*Methcxychlor -. " . . . - . . . - * - - - - • - • - - O

«234,5-TP Silvex . . , . . . . . • - • - - - ~- '-- - - °-01^Radium 226 £ 228 ......... '. ....... 5 pC/1-Gross alpha particle activity (incl_. radium 226 .


^Primary--Secondary

flR200987

P O BOX 589CEVELCFM EN T '~& "2- *;KL-\ G L C RO t TOW N DELAWARE 19947

AND'C\\CRKS _ - U'TbiZllb*,1 AP • . 02:856-7701 ETXT 325

December 15, 1983

Kr. Kim Taylor _R.D, 3, Bex 347-NLaurel, Delaware 19 : 6 . „ „

Dear Mr. Taylor:

The reeling original! -• scheduled for Thursday, Dacer.ber 15,1983 has been rescheduled far. Tuesday, January'3, 19.34 at7:30 p.m. at the Laurrel Town Kail. :;

I am" en-closing a cop 7 of the analysis for "the ssinplingwhich was performed in. October, 1983 and a copy of theDelaware Drinking V7a»^=r Standards which gives the maximumcontaainant levels frrr different: constituents found indrinking water.

We will review the £-;.alysis and answer any questions younay have at this —.ae — nag. I look forward to seeing you there

I wish you and ycur f E .ily a very Merry Chris tr,;as and avery Happy New Year.

Very truly yours,

B.oberc Ifc. SartinDirector

Enclosures: 2

cc; Joseph T. Ccnawa ;.'Patricia L. IsaaccsAbraham The—as

RWM/pli

flR200988

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Do 'AH£ DRINKING WATER

Maximum Contaminant LevelSubstance . Concentration in Mg/Iiter

^Arsenic (As) . . . . . . . . . . . . . . . . . . . 0.05"Barium (Ba) . . . . . . . " . . . . . . . . . , . , 1.*Cadrr.iun) (Cd) . . . . . . . . . . . . . . . . . . . . 0.010

*ftChloride (Cl). . . . . . . . . . . . . . . . . . 250.*Chrcmium (Cr). . . . . . . . . . . . . . . . . . . 0.05^Copper (Cu) . . . . . . . . . . . . . . . . . . . 1.*riuorlde (F) . . . . . . . . . . . . . . . . . . . 1.8

A*roaming Agent. . . . . . . . . . . . . . . . . . . 0.5**Iron (Fe). . . . . , ' . . . . . . . . . . . . , . V 0.3

(Pb). . . . . . . . . . . . . . . . . . . . . . . 0.05(Kn) . . . . . . . . . . . . . . . . . . 0.05

Mercury (Kg) . . . . . . . . . . . . . . . . . . . 0.002^Nitrates as Nitrogen (N) . . . . . . . . . . . . . 10.^Selenium (Se) . . . . . . . . . . . . . . . . . . 0.01^Silver (Ag) . . . . . . . . . . . . . . . . . . . 0.05£*Sulfate (S04). . . . . . . . . . . . . . . . . . 250.**Hydrogen Sulfida (H2$) . . . . . . . . . . . . . . 0.05^^Total Dissolved Solids . . . . . . . . . < . . . 500.**ZInc (Zn)... . . . . . . . . . . . . . . . . . . . 5.^Endrln . . . . . . . . . . . . . . . . . . . . . . 0.0002^Lindane . . . . . . . . . . . . . . . . . . . . . . 0.004^Methoxychlor . . . . . . . . . . . . . . . . . . . 0.1-.-^Toxapbene . . . . " . . . . . . . . . . . . . . . . 0.005*2,4-D ...................... 0.1&2,4,5-T? Silvex . . . . . . . . . . . . . . . . . 0.01*KadIura 226 £ 228 ................. 5 pC/1Gross alpha particle activity (incl. radium 226


^Primary

flR200990

i'OF DIRECTOR . ' " "" X/ &L C^* . \'f\ p ° SO* 589ECONOMIC DEVELOPMENT-. .. . . . . . . . . s' ,,{ 5-5 Jf V'N-effi- GEORGETOWN DELAWARE 19947

AND .îê-i?1*. ~" r~-n.*\- 'îri:i 856-77O1 £X7 325

December 15, 1983

Kr. and Mrs. Frank SokolyRt. 3, Box 347-CLaurel, Delaware 19956

Dear Mr. and Mrs. Sokoly:

The. meeting originally scheduled for Thursday, December 15,1983 has baen rescheduled for ...Tu&sday , January 3 , 1984-.at7:30 p.m. at the Laurel Town Hall .

1 am enclosing a copy of" -the analysis for the samplingwhich was performed in October, 1983 and a copy of theDelaware Drinking Water Standards which gives the maximumcontaminant levels for different, constituents found indrinking water. . . . . . . . . . .

We will review the analysis and answer any questions youmay have at this me.e.t.ing. I look forward to seeing you there

I wish you and your family a very Kerry Christmas and avery Happy New Year. . . . . . __.. . . . . . . .

Very truly yours ,

Robert Wm. "MartinDirector .

Enclosures : . 2


RWM/pli

flR20099

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200992

-ArX LINKING WATUE £

Maximum Contaminant LevelSubstance/ . . . . . ....___. _. _Conce.nt_rg.tJ..Qn. in Mg/3 i ter

-Arsenic (As) . . . . . . . . . . . . . . . , , .-Barium (5a) . . . . . . . . . . . . . . . . . .-Cadmium (Cd) . . . . . . . . . . . . . . . . . . .

**Chloride (Cl). . . . . . . . . . . . . . . . . .-•"Chromium (Cr). . . . . . . . . . . . . . . . . .

-•"Copper (Cu) . . . . . . . . . . . . . . . . . .-•Fluoride (F) . . . . . . . . . . . . . . . . . .

--roaming Agent. . . . . . . . . . . . . . . . . . .(Fe). . . . . . . . . . . . . . . . . . . .(Pb). . . . . . . . . . . . . . . . . . . . . .

"-•Manganese (Mn) . . . . . . . . . . . . _ . . . . .-Mercury (Kg) . . . . . . . . . . . . . . . . . .^Nitrates as Nitrogen (N) . . . . . . . . . . . .-Selenium (Se) . . . . . . . . . . . . . . . . . . 0.01^Silver (Ag) . . . . . . . . . . . . . . . . . . . . 0.05**Sulfate (S04).'. . . . . . . . . . . . . . . . . 250.--Hydrogen Sulfide (H2S) . . . . . . . . . . . . . . . 0.05--Total Dissolved Solids . . . . . . . . . . - _v . 500.— Zinc (Zn).,. . . . . . . . . . . . . . . . . . . . 5.*Endrin . . . . . . . . . . . . . . . . . . . . . . 0.0002-Lindane . . . . . . . . . . . . . . . . . . . . . . . O.OOU-Metboxychlor . . . . . . . - . ' . . . . . . . . . . . 0.1-Toxaphene . . . . . . . . . . . . . . . . . . . . 0.005*2,4-*D ..... ... .". ..... /". . .... "0.1«234,5-TP Silvex . . . . . . . . . . . . . . . . . 0.01-Radium 226 £. 228 . . ............... 5 pC/1-Gross alpba particle activity (incl. radium 226..

but excluding radon £ uranium) 15 pC/1

-Prinvary*"Seconda.ry

/5R200993

OFF.CE OF C SECTOR ' *S/ LS? • fc -' V\ P °ECONOMIC CE\£LOFMENT S tt ^ . VX-\B GEORGETOWN DELAWARE 19947

•3O2l B56-77O! £XT"325

Decerber 15, 1933

Mr. Derby WalkerR.D. 3Laurel, Delax*are 19956

Dear K£ —r aH

The meeting originally scheduled for Thursday, Decanter 15,1983. has been rescheduled for Tuesday, January 3_, 1984 at7:30 p.m. at the Laurel Town Hall.

I am enclosing a copy of the analysis.for the samplingwhich was performed in October, 1983_ and a copy of theDelaware Drinking Water Standards which gives the maximumcontaminant levels for different constituents found indrinking wacer.

\\Q will review the analysis and answer any questions youmay have at this meeting. I look forward to s'eeing you there.

I wish you and your family a very Kerry Christmas and avery Happy New Year.

Very truly yours,

n r/* #-VKober^/Wnu MartinDirector

Enclosures: 2


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flR200995

DI '•''ART Lrl \KIKG WATER STANDAr.ir

Maximum Contarr.inent LevelSubstance^ _ Concentration in Kg/liter

^Arsenic (As) ....... . . . . . . . . . . . . 0.0.5^Barium (3a) ....... . . . . . . . . . . . . 1.-Cadmium (Cd) ....... . . . . . . . . . . . . 0.010

ft*Chloride (Cl). ....... . . . . . . . . . . . 250.^Chromium (Cr). ...... . . . . . . . . . . . . 0.05-^Copper (Cu) . . . . . . . . . . . . . . . . . . . 1.

e (F) ....... ............ 1.8Agent. ...... . . . . . . . . . . . . 0.5

(Fe-). . . . , . " . . . . . . . . . . . . . . . 0.3(Pb). ........ . . . . . . . . . . . . . . 0,05nese (Hn) . . . - . - . . . . . . . . . . . . 0.05

• Mercury (Hg) ....... ............. O.a02^Nitrates as Nitrogen (N) . . . . . . . . . . . . . 10.^Selenium (Se) ...... . . . . . . . . . . . . 0.01^Sliver (Ag) ....... . . . . . . . . . . . . 0.05£*Sulfate (SOi;). ...... . . . . . . . . . . . 250,&&Kydrogen Sulfide (KsS) . - ............ 0.05

Dissolved Solids ... . . . . . . . . . . . 500.(Zn)... ....... . . . . . . . . . . . . 5.n .......... ............. 0,0002

^Lindane .......... . . . . . . . . . . . . 0.004*Methoxychlor ....... ............ 0.1^Toxaphane ....".... ............ 0.005^2,4-b .......... ............ 0.1*2,4,S-TP Silvex ...... . . . . . . . . . . . . oJoi*Kadium 226 & 228 ..... ............ 5 pC/1

alpha particle actlvvlty (Incl. radium 226 ~~but excluding radon c- uranium) 15 pC/1

^Primary

SR200996

. iilh.OFFICE OF DIRECTOR . .. . /S fc. S? ' V/^V P ° BOXECONOMIC DEVELOPMENT . „ .3=)" &J3 %'vL' GEORGETOWN DELAWARE 19.947

ANDPUBLIC WORKS ... . ._- . !b--Ci\ I'S -LIL */ />,£/ 2O21 856-77O1. EXT 325

December 15, 1983

Mr. Levin BrittinghamR.D. 3 Box 347-CLaurel, De. 19956

Dear Mr. Brittingham:

The meeting originally scheduled for Thursday, December'15,19B3 has- been, rescheduled for".Tuesday, January 3, 19S4 at7: 30'p. in., .at .the Laurel Town Hall.

I am enclosing a copy of the analysis for....the samplingwhich was .performed in.October, 1983 and a copy of theDelaware Drinking Kater. Standards which gives the maximumcontaminant levels., for different..-.constituents found indrinking water. . •- — . . -. - v -- ----- . - - - -

We will review the analysis and answer any questions youmay have at this .meeting. .1 look forward to seeing you there

1 wish you and your family 'a very "erry Christraas and avery Happy New Year. •-• -" - .-— -

Very truly yours,

Robert Wn."MartinDirector -

cc: Joseph T. ConawayPatri.cia L. IsaacsAbraham Thomas

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D: VAKI: I'.-J.NKiNG WATLK A JA.?.?

Maximum Contaminant LevelSubstance _ _ . . . . . . _ . Concentration in_ Kg/liter

-Arsenic (As) . . . . . . . . . . . . . . . . . . . 0.05"Barium (Ba) . . . . . . . . . . . . . . . . . . . 1.-Cadmium (Cd) ....... . . . . . . . . . . . . . 0.010

**Chloride (Cl). . / . . . . . . . . . . . . . . . 250."Chromium (Cr). . . . . . . . . . . . . . . . . . . 0.05**Copper (Cu) . . . . . . . . . . . . . . . . . . . 1.*Fluoride (F) . . . . . . . . . . . . . . . . . . . 1.8

--Foaming A g e n t . . . . . . . . . . . . . . . . . . . 0.5**Iron (Fe). .....'.. . . . . . . . . . . . . . 0.3*Lead (Pb). . . . . . . . . . . . . . . . . . . . . . . . 0.05

--Manganese (Mn) ..... . . . . . . . . . . . . . 0.05--^Mercury (Hg) ...... . . . . . . . . . . . . . 0.002-Nitrates as Nitrogen (N) . . . . . . . . . . . . .10.^Selenium (Se) ..... . . . . . . . . . . . . . 0.01^Silver (Ag) ...... . . . . . . . . . . . . . 0.05**Sulfate (S04).-. .... . . . . . . . . . . . . . 250.•^-Hydrogen Sxilfide (h S) . . . . . . . . . . . . . . . 0.05--Total-Dissolved Solids - . ' . . . . . ' . . . . . . . 500.*«Zinc (Zn).,. ...... . . . . . . . . . . . . . 5.-Endrin . . ....... . . . . . . . . . . . . . . 0.0002-^Lindane ......... . . . . . . . . . . . . . 0.004-Metboxychlor . . " . . . . - , . . . . . . . . . . . . 0.1-Toxapbene . _ , . - ' . . . . . . . . . . . . . . . . . 0.005*2,"4-b ......... ........ .".".. . 0.1*2,4,5-TP Silvex .... . . . . . . . . . . . . . 0.01.*Radiura 225 S 228 .... . . . . . . . . . . . . . 5 pC/1-Gross alpha particle activvity (incl. radium 225

but excluding radon C uranium) 15 pC/1

^Primary--Secondary

aR200999

PO BOXECONOMIC DETVCUCFMEMT 7j|s. \^ GEORGETOWN DELAWARE 19947

ANDPUBUC \\ORKS t K\k J JCJ Al^ ^302^ 856-7701 EXT 325

December 15, 1983

Mr. Frederick P,anseyRt. 2, Box 347-0Laurel, Delaware 1993 55

Dear Kr. Ramsey:

The ^seeing original!' " .scheduled for Thursday, December 15,1983 has been resched--Ied for Tuesday, January 3, 19~84 at7:30 p.m. at the^Laurs =1 .Town Hall.

I air. enclosing a copy of the analysis for the samplingwhich was performed ir_ r. October, 1983 and a copy_ of theDelaware Drinking Va-zLcr Standards which gives the maximumcontaminant levels *ferr different constituents found in.drinking water.

We will review the anz.^lysis and answer any questions youmay have at this —eezm.r_g~ I .look forward to seeing" you there.

I wish you and your f:rzziily a very Merry Christnas and avery Happy New Year.

Very truly yours,

Robert Wm, MartinDirector

Enclosures: 2

cc: Joseph T, Conawa.""Patricia L. IsaacscsAbraham Thorr.as

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Contaminant LevelSubstance^ _ Concentration in Mg/liter

*Arsenic (As) . . . . . . . . . . . . . . . . . . . 0.05-Barium (Ba) . . . . . . . . . . . . . . . . . . . 1.^Cadmium (Cd) ....... . . . . . . . . . . . . 0.010

ft*Cfcloride (Cl). ...... . . . . . . . . . . . 250."Chromium (Cr). . . . . . . . . . . . . . . . . . . 0.05"^"Copper (Cu) . . . . . . . . . . . . . . . . . . . 1.*riuorlde (F) ....... . . . . . . . . . . . . 1.8

"^Foaming Agent. ...... . . . . . . . . . . . . 0.5**Iron (Fe). . . . . . " . . . . . . . . . . . . . . . 0.3*Lead (Pb). ........ .............. 0.05^Manganese (Mn) ...... . . . . . . . . . . . . 0.05^Mercury (Kg) ....... . . . . . . . . . . . . 0.002^Nitrates as Nitrogen (N) . . . . . . . . . . . . . 10.^Selenium (Se) ...... . . . . . . . . . . . . 0.01^Silver (Ag) ....... . . . . . . . . . . . . 0.05**Sulfate (S04). ...... . . . . . . . . . . . 250.**Kydrogen Sulflde (H2S) . . . . . . . . . . . . . . 0.05**Total Dissolved Solids . . . . . . . . . . . . . . 500.**ZInc (Zn)... ....... . . . . . . . . . . . . 5.^Endrin .......... . . . . . . . . . . . . 0.0002^Lindane .......... . . . . . . . . . . . . 0.004^Methoxychlor ....... . . . . . . . . . . . . 0.1^Toxaphene ....*.... ............ 0.0052,4-D .......... ............ 0.1*2,4S5-TP Silvex ..... .. . . . . . . . . . . 0.01*Radiuin 226 £ 228 ..... . . . . . . . . . . . . 5 pC/1*Gross alpha particle sctiv—iTy (incl. radium 226

but excluding racon £ -cranium) 15 pC/1

Primary

SR20I002

>.-nCEG? DIRECTOR . H Jt, TT'-' ?C5\ P° 8°X 589.-VC'ViiC DEVELOPMENT » */£ - Ji Jp _' <^, . f-.ECRC-E.TOWN OFLAWARE 19947

ANDPUBLIC WORKS • " '•- I; P\'A - _r!_l>C; /x/*1 - 302i8b6-77Ql EXT 325

December 15, 1983

Kr. Fred Marland701 S. Central AvenueLaurel, Delaware 19956

Dear Mr. Marland:

The .meeting originally, scheduled .fo^-'Thursdav, December 15,"1983 has b.cer. • rescheduled for: Tuesday, January 3, 1984 at7:30 p.m. "at the Laurel Town Hall.

1 am enclosing a copy of the analysis for the samplingwhich was performed .in October, 1983 and a copy of theDelaware. Drinking Water Standards which gives the maximumcontaminant levels, far. different constituents found in.drinking water. . , .,.. ...„,.. .. .. ., .._.._,.,.__„__... ,

We will review the analysis and answer any questions youmay have at this meeting. I look forward to seeing you there

I wish you and your family a very Merry Christinas and avery Happy New Year. -- - - - -

Very truly yours,

Robert Tvm;~ MartinDirector . . _ . .- .

Enclosures: 2

cc: Joseph T. ConawayPatricia .L. IsaacsAbraham Ttiomas

RTvM/pli

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« DL >'AFX"; DRINKING WAiER STANSAKDf

Maximum Contaminant LevelSubs.tance^ - . Concentration in Mg/Iiter

-Arsenic (As) . . . . . . . . . . . . . . . . . . . . 0.05-Barium (Ba) . . . . . . . . . . . . . . . . . . . 1.^Cadmium (Cd) . . . . . . . . . . . . . . . . . . . . 0.010

**Chloride (Cl). . . . . . . . . . . . . . . . . . 250.•'•'Chromium (Cr). . . . . . . . . . . . . . . . . . . 0.05

--Copper (Cu) . . . . . . . . . . . . . . . . . . . 1.*Fluoride .(F) ._.._. . . . . . . .. ... . . . . . . . . 1.

"-FGaming 'Agent. . . . --.-- . . . . . . . . . . --- - - - -. . 0,**Iron-(Fe). . . . . . ' . . . . , . " . . . . . . . . . 0.

. *Lead (Pb). . _ . . . . . . . . . . . . - . . . . . . - 0.--Manganese (Mn) . . . . . . . . . . . . . . . . . . 0.^Mercury (Hg) . . . . . . . . . . . . . . . . . - ." " 0.-Nitrates as Nitrogen (N) . . . . . . . . . . . . . 10.^Selenium (Se) . . . . . . . . . . . . . . . . . . 0.01^Silver (Ag) . . . . . . . . . . . . . . . . . . . 0.05

A*Kydrogen Sulfi'de (H2S) . . . . . . . . . . . . . . 0.05A^Total Dissolved Solids . . . . . . . . . . . . . ; 500.^Zlnc (Zn)... . . . . . . . . . . . . . . . . . . . 5.*£ndrin . . . . . . . . . . . . . . . . . . . . . . 0.0002->Lindane . . . . . . . . . . . . . . . . . . . . . . 0.004-Methoxychlor . . . . . . . . . . . . . . . . . . . 0.1"Toxauhene . . . / . . . . . . . . . . . . . . . . 0.005-2,4-D ...................... 0.1-2,4,5-TP Silvex ................. 0.01-Radium 225 & 228 . . . . . . . . . . . . . . . . . 5 pC/1-Gross alpha particle, activity (incl. radium 226

but excluding radon & uranium) 15 pC/1

^Primary^-Secondary

flR20i005

CFF.CEQFC:? r >% . ^ECGNOMiC DEVELOPMENT y rViJ Ji %- \ jS GLORGETOV.'N DELAWARE 1994 7

AND t W'**• isiPUBLIC \\ORKS J 00 I3OZ.-856 77CI £ X f 32

December 15, 1983

Mr. and Mrs. Robert NicholsRe. 3, Box 347-HLaurel, Delaware 19956

Dear Mr. and Mrs. Nichols:

The meeting originally scheduled for. Thursday, December..15,1983 has been rescheduled for Tuesday, January 73, 1984 at7:30 p.m. at the Laurel Town Hall.

I am enclosing a copy of the analysis for the samplingwhich was performed in October, 1983 and a copy of theDelaware Drinking Water Standards which gives the maximumcontaminant levels for different constituents found Indrinking water. .

We will review the analysis.and answer any questions youmay have at this meeting. 1 look forward to seeing you there

I wish you and your family a very Merry Christr.ias and avery Happy New Year.

Very truly yours,

Robert Wm.-MartinDirector

Enclosures: 2


RWM/pli

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Kaxirum Contaminant LevelSubstance Concentration in Mg/}iter

^Arsenic (As) . . . . . . . . . . . . . . . . . . . 0.05^Barium (Ba) . . . . . . . . . . . . . . . . . . . 1.^Cadmium (Cd) . . . . . . . . . . . . . . . . . . . . 0.010

**Chioride (Cl). . . . . . . . . . . . . . . . . . 250.^Chromium (Cr). . . . . . . . . . . . . . . . . . . 0.05**Copper (Cu) . . . . . . . . . . . . . . . . . . . 1.*riuorade (F) . . . . . . . . . . . . . . . . . . . 1.8

»**Fodming Agent. . . . . . . . . . . . . . . . . . . 0.5**Iron (Fe). . . . . . . . . . . . . . . . . . . . . 0.3*L«ad (Pb). . . . . . . . . . . . . . . . . . . . . . . 0.05

5>»>Manganesa (Ma) . . . . . . . . . . . . . . . . . . 0.05*Xercury (Kg) . . . . . . . . . . . . . . . . . . . 0.002^Nitrstes as Nitrogen (N) . . . . . . . . . . . . . 10.^Selenium (Se) . . . . . . . . . . . . . . . . . . 0.01^Silver (Ag) ................... 0.05^*Sulfate (SOi*). . . . . . . . . . . . . . . . ; . 250.

en Sulfide CH2S) . . . . . . . . . . . . . . 0.05Dissolved Solids . . . . . . . . . . . . . 500.

**2Inc (Zn)... . . . . . . . . . . . . . . . . . . . 5...................... O.OQ02. . . . . . . . . . . . . . . . . . . . . . O.OOU

^Methoxychlor . . . . . . . . . . . . . . . . . . . 0.1^Toxaphene * , . / . . . . . . . . . . . . . . . . 0.005*2,*f-i> ...................... o.i2, ,5-TP Silvex . . . . . . . . . . . . . . . . . 0.01^Radium 226 £ 228 ................. 5 pC/1*Gross alpha particle activity (Incl. radium 226


^Primary

flR20IOQ8

rodney l. wyatt t count arodney l. wyatt t count a . engineering department 8 north race street p o...

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