I I I I I

r PROVINCE OF BRITISH COLUMBIA MI N I STRY OF E N V I RONMENT WATER MANAGEMENT BRANCH

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CONSTRUCTION AND TESTING OF OBSERVATION WELL NO. 296

MERRITT, BRITISH COLUMBIA

CONTRACT NO. 84

D. Kalyn Tec h n i c i an

Groundwater Sect ion

Victoria, British Columbia December 1988

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TABLE OF CONTENTS

1. INTRODUCTION

2. WELL CONSTRUCTION

3. WELL TESTING

4. WATER QUALITY

5. HYDROGEOLOGY

6. CONCLUSIONS AND RECOMMENDATIONS

7. REFERENCES

LIST OF FIGURES

F igu re 1 Locat ion Map

F i g u r e 2 & 3 S i t e P l a n

F i g u r e 4 We1 1 Construct ion D e t a i l s

F igu re 5 & 6 S u r f i c i a l Geology

PAGE

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2

3

4

6

8

9

10

11,12

13

14,15

LIST OF APPENDICES

Appendix A Well Log, Contract Cost, Sieve Analysis 16

Appendix B Pump Test Data 22

Appendix C Water Qual i t y Lab Analyses 29

Appendix D Water Level Recorder I n s t a l 1 a t i o n S p e c i f i c a t i o n s 40

Appendix E Photographs 43

I 1 I I E I I E I I I I I I 0 I II

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INTRODUCTION

The Merritt area was recommended by M. Wei (1986) f o r establishment of a

well f o r the Groundwater Observation Well Network Program to monitor

regional groundwater conditions i n the Nicol a-Col dwater Val ley. The c i t y of

Merritt i s located e a s t of the confluence of the Nicola River and Coldwater

River (Figure 1). Merritt i s underlain by a shallow fluvial sand and gravel

aquifer. Four h i g h capacity wells located w i t h i n the aquifer supply water

t o approximately 6000 residents.

Currently the consumption of the City of Merritt wells varies from a low of

1.5 mill ion gallons per day i n the winter months to a high of 5.5 mill ion

gallons per day i n the summer according to City of Merritt s t a f f .

Establishing a groundwater observation well i n this area will enable

long-term monitoring of water levels and water quali ty of the underlying

surfici a1 aqui fer. Water qual i t y monitoring is an important.. concern of

areas w i t h shallow surf ic ia l unconfined aquifers a s these aquifers are more

susceptible to groundwater contamination.

In September 1986 a f ie ld survey was conducted i n an attempt to locate an

abandoned well f o r use as an observation well. T h i s attempt, however, was

unsuccessful and i t was decided t o d r i l l an observation well. In November

1986, a d r i l l s i t e was selected by D. Kalyn i n conjunction w i t h the City of

Merritt s t a f f . The s i te is located on Crown Land along Coldwater Avenue

I I I I I I I I I 1 I I I I E I I 1 n

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(F igu res 2 and 3 ) and i s c u r r e n t l y used as a recrea t ion l o t by the Minis t ry

o f Fores t s and Lands. An agreement w i t h B.C. Building Corporat ion was

obtained i n o rder to allow the d r i l l i n g of an observat ion well on this l o t

and t o allow monitoring of the well f o r a m i n i m u m 10 year period.

WELL CONSTRUCTION

D r i l l i n g and t e s t i n g was c a r r i e d out by M. Schib l i Water Wells of Lumby,

British Columbia, under Government Contract No. 84. Construct ion of the

well took place on March 2 t o 5 , 1987, and t o t a l c o n t r a c t c o s t s were

$4,462.82. These c o s t s a r e itemized and shown i n Appendix A. The 152mm

diameter well was d r i l l e d by the a i r ro ta ry method t o a depth of 17 metres

Well cons t ruc t ion d e t a i l s a r e i l l u s t r a t e d i n Figure 4. Due to boulders near

ground level, no s u r f a c e casing was i n s t a l l e d i n this well. D r i l l i n g

encountered the f o l l owi ng mater i a1 s: 7-

0 - 0.3m Top Soil

0.3m - 2.7m Sand and Gravel Wi th Boul de r s

2.7m - 4.6m Fi ne-Medi um Gravel

4.6m - 15.2111 Sand and Gravel

15.2~1 - 1 7 . h Fine Si1 ty Sand

A 1.2-metre length o f 50-s lo t s t a i n l e s s steel well screen was i n s t a l l e d

between 13.0 and 14.2 metres. The screen assembly also cons i s t ed of a l . l m

l e n g t h o f riser pipe w i t h a neoprene packer. The 152mm diameter cas ing was

pu l l ed back t o 13.0 metres to expose the well screen. The well was

I I I I I I E I I 1 I 1 I I I I. I I I

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developed for 3 hours using compressed a i r w i t h the water conta in ing much

sand a t the start and clearing up considerably near the end of development.

Sieve analyses were performed from 3 separate samples taken a t depths

between 11.0 metres and 14.9 metres (Appendix A ) . Results of the sieve

analysis indicate t h a t a 50-slot screen would theoret ical ly retain 60

percent of the material. T h i s screen selection may be conservative for

production purposes, however, i t i s satisfactory for the wells intended use

of water level monitoring.

WELL TESTING

On March 4 , 1987, a constant ra te pumping t e s t was conducted us ing a

Berkeley 5 horse power submersible pump. The pump was s e t a t 11.7 metres

and the well was pumped for 6 hours a t a ra te o f 4.95 l i tres/second (78.5

USgpm). An o r i f i ce was se t up a t the end of the discharge l i ne

approximately 140 metres from the well i n order to measure the rate of

discharge. The i n i t i a l s t a t i c water level was 4.390 metres below the t o p of

the 152mm diameter casing and water levels stabil ized almost immediately

a f t e r pumping began (Appendix B ) . After 6 hours of pumping, the final water

level reading was 5.070 metres representing a drawdown of 0.680 metres or 8

percent of the total available drawdown to the t o p of the well screen.

Recovery was rap id w i t h the water level recovering t o w i t h i n 0.011 metres o f

the original s t a t i c water level only 4 minutes a f t e r pumping had stopped.

From the pumping t e s t resu l t s , a f t e r 360 minutes of pumping a specific

1 I I I i I I 1 I I 1 I 1 I I I 1 I

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c a p a c i t y o f 7.28 1 i t res/second/metre (35.2 USgpm/ft) o f drawdown can be

ca l cu la ted . A t r a n s m i s s i v i t y value was ca l cu la ted (Appendix B) us ing

recovery data, and i s shown t o be i n the range o f 1.65 x 10'2m2/sec.

T r a n s m i s s i v i t i e s o f t h i s magnitude i n d i c a t e t h a t w e l l s i n t h i s type o f

a q u i f e r genera l l y make good i r r i g a t i o n we l ls . Using the above data and

u t i l i z i n g 70 pe rcen t o f the a v a i l a b l e drawdown, a t h e o r e t i c a l sa fe w e l l

y i e l d o f 45.5 l / s was ca lcu la ted . The w e l l capac i ty however i s l i m i t e d by

t h e screen design. The 50 -s lo t screen i n s t a l l e d has a t r a n s m i t t i n g capac i t y

o f approximately 6.3 1 / s (100 USgpm). I n o rde r to more accu ra te l y assess

t h e a q u i f e r s p o t e n t i a l i t would be necessary t o design a l a r g e r diameter

w e l l capable o f y i e l d i n g a much g rea te r volume of water.

WATER QUALITY

Two separate f i e l d water q u a l i t y t e s t s were conducted du r ing the pumping

t e s t us ing a Hach chemical ana lys i s k i t and c o n d u c t i v i t y meter. Resu l ts o f

these f i e l d analyses are as fo l l ows :

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OBSERVATION WELL NO 296 - MERRITT

MINUTES OF PUMPING F' PARAMETERS

Temperature

Spec i f i c Conductance

I H

41 k a l i n i ty

Hardness

Ch lor ide

I r o n

I 8.5 "C

158 umhos/cm

7.5

a5 mg/l

103 mg/l

~ 1 2 . 5 mg/l

250

~

8.5 "C

150 umhos/cm

7.0

85 mg/l

85 mg/l

4 2 . 5 mg/l

0.3 mg/l

Water samples were a lso c o l l e c t e d a t 100 and 300 minutes i n t o the pump t e s t

and submit ted t o the Environmental Laboratory f o r a d e t a i l e d chemical

ana lys i s . Resul ts o f the two analyses were near ly i d e n t i c a l and are

a t tached i n Appendix C. Laboratory r e s u l t s i n d i c a t e the groundwater i s a

moderately minera l i z e d ca lc ium and magnesium-bicarbonate type which i s a1 so

f a i r l y s o f t . A l l water chemist ry parameters tes ted are w i t h i n the maximum

acceptable concent ra t ions set out i n "Guide1 ines f o r Canadian D r i n k i n g Water

Qual i t y 1978".

I n o rder t o determine the i n c r u s t i v e o r cor ros ive na ture o f the water,

c a l c u l a t i o n s using the Ryznar S t a b i l i t y Index were performed. Water with a

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Ryznar S tab i l i ty Index value of greater than 7 i s said to be corrosive while

a value of l ess t h a n 7 i s considered to be incrustive. Using f i e l d and

laboratory resu l t s , an RSI value of 9.44 was calculated indicating the

groundwater has a potential to corrode. I t should be mentioned tha t this

well has been sampled i n l a t e 1987 for PCP contamination due to suspected

contamination from local mil 1 s using wood-preservatives. One sample taken

December 14, 1987 showed 25)~g/L PCP (Pentachlorophenol ) , (Wei, M. 1988).

HYDROGEOLOGY

A t present Groundwater Section has 2 1 well records i n Merritt. Some of the

wells were unsuccessful testholes and have been abandoned. Most of the

wells are l e s s than 100 f e e t deep and are completed i n t o a shallow gravel

and sand deposit which forms the principal aquifer i n the region. The

aquifer i s unconfined and is generally between 20 f e e t and 50 f e e t thick and

supplies several hundreds of gallons per minute to wells. The City of - -- -- .-

Merrit t and Co l l e t tv i l l e Improvement D i s t r i c t production wells are completed

i n the same deposit b u t i n a deeper gravel-fi l led channel. These production

wells have a capacity of about 1000 gpm to 1500gpm. T h i s channel, located

a t the northwest end of town i s apparently very narrow, up to a depth of 100

f e e t or more and may extend i n an east-northeast direction. Observation

Well No. 296 i s completed i n the aquifer b u t d id not encounter this channel

of coarse grained sediments by the Nicola and Coldwater Rivers.

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The aquifer transmissivity, ranges between 5x104 and 10x104 gpd/ft , typical

of moderately transmi ssive aquifers. Regional fl ow appears to be downs1 ope

towards the west. Recharge to the aquifer may come from r ive r flow and

d i r e c t precipitation. The f ac t tha t the aquifer is permeable, unconfined

and located a t a shallow depth makes i t susceptible to pollution, regular

sampling of Observation Well No. 296 t o monitor water quali ty is recommended

and shou ld a lso include the tes t ing fo r PC contamination. q? The aquifer i s underlain by f i n d sand, s i l t and clay. T h i s depos i t outcrops

on the h i l l s ide beside the aquifer and forms an aquitard of about 200 feet

t o 250 f e e t thickness below the valley floor. The s i l t and clay deposit was

formed by depos i t ion of fine-gained sediments i n a prehistoric glacial lake

covering Merritt. The River Ranch wells just northeast of the c i t y are

completed i n t o sand and gravel layers i n or beneath this deposit. These

sand and gravel layers form flowing ar tes ian aquifers which reportedly

supply up t o 7000 gpm to wells b u t which are not well defined i n location.

Alluvial and glaciofluvial deposits associated w i t h the glaciolacustrine

deposit occur southeast and northwest of Merritt respectively (Figures 5 and

6 ) . Groundwater potential i n these depos i t s is unknown.

01 der unconsolidated deposits may l i e beneath the glaciolacustrine depos i t

and above bedrock. Presence of these unconsolidated deposits are inferred

from d r i l l log data only. Groundwater development i n these deeper deposits

have not been explored as most of the exploration, development and

exploitation of the groundwater resource has taken place i n the shallow,

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productive sand and gravel aquifer i n which Observation well No. 296 i s

compl eted.

CONCLUSIONS AND RECOMMENDATIONS

1 1 1 1 I I 1 I I I I I I I I ,I

One 152mm diameter observation well was dr i l led for the Ministry of

Environment w i t h a t o t a l contract cost of $4462.82. The surf ic ia l

well was completed w i t h i n a unconfined aquifer t o a depth of 14.3

metres.

A1 1 water chemistry parameters tested are w i t h i n the maximum

acceptable concentration set o u t i n "Guide1 ines for Canadian Dr inking

Water Qual i t y 1978".

The observation well shou ld be sampled for complete water chemistry

analysis a t l ea s t once per year, and shou ld include tes t ing fo r PCP

contamination. The sampling shou ld be carried out i n l a t e summer - early Fa l l when groundwater levels are a t o r near their lowest.

The water level recorder ins ta l la t ion shou ld remain i n place for a

m i n i m u m period of 10 years. Water level and water qua l i t y data should

be reviewed periodically to monitor the groundwater conditions of the

aquifer.

REFERENCES

Driscoll , F1 t h

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r G. 1986. Groundwat

Johnson Divis ion , St. Paul , Minnesota.

and Wells - S

1089 p.

!I Edi t ion .

Health and GIelfare Canada. 1979. Guidel ines for Canadian Drinking

Water Qual i t y 1978. Canadian Government Pub1 i shi ng Centre, H u l l , Quebec, Canada. 79 p .

Wei , M. 1986. Groundwater Observation Well Network Expansion Program

Proposal 1986/87 F i sca l Year, Minis t ry o f Environment, Victoria, B.C.,

Unpubl i shed memo. F i l e: 0183613-8

I I I I I I I I I I I I I I I I I I I

Wei, M. 1988. Chlorophenols i n Groundwater - Merritt.

Minis t ry of E & P , GWS, V i c t o r i a , B.C., Unpublished Memo.

File:92I/2.

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Province of British Columbia Ministry of Environment WATER M A N A b t M k N T BRANCH

1 :50,000 DATE

MOR. ................................................................................. SCALE : VERT. ................................................. 1 APRIL 1988 ’

TO ACCOMPANY REPORT ON

MERRITT - OBSERVATION WELL No, 296

M. WE1 ........................................................................................ ENGINEER ~

FIGURE 1 fIlE No.. ................................. 92 I/2 #12 DWG. ho ...........................................

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DATE b SCALE: Urn 1 __... r .... 8.m.: ... _..____.______..._

-. _.___._...__ ____..._________.____ _ _ _ _ _ _ _ _ _ _._.___ ... A~.K ..... ~Z........

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LOCATION O F O B S . WELL NO. 296 . . . .

c

MERRITT. B.C.

._ ..______...._ M.I __.. W.E.! .___.____.____._ ~ _.__..__.__.__.______..__.._._..____ ENGINEER

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WATER MANAGEMENT BRANCH

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12.0- 17

COLDWATER AVE.

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OBS. W€LL NU. 29b - MERRITT. B.C.

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Province of British Columbia Ministry of Environment WATER MANAGEMENT BRANCH

7 0 ACCOMPANY REPORT ON -

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I I I I I I I I .I I I I I I i i I

SLJRFlCtAt G€OLOGY ME RRITT

Pmvinc6 of British Columbia Mnstry of Environment WATER MANAGEMENT BRANCH

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I I I I I I I I I I I I I I I I I 'I I

- 1'5 - SCHEMATIC X-SECTION / MERRITT

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Appendix A

Well Log, Contract Cost, Sieve Analysis

&&ST I M A T E O 0 SURVEYED

ELEVAT I 0 N I D E P T H 4 7 1 OF-

I

II I C A S I N G OIAM. L E N G T H 45

CASING OIAM LENGTH e

TYPE 2 5 . METHOD OF C o N s ~ ~ u c T i o N AIR -, ROL SCREEN LOCATION 4 . 7 ' - 4 6 . 8 SCREEN 0 S I Z E -LENGTH 4 S A N I T A R Y SEAL Y E S 0 N O 0 S C R E E N 0 S I Z E L E N G T H T Y P E PERFORATED CASING 0 LENGTH PERFORATIONS FROM TO

GRAVEL PACK 0 L E N G T H , DlAM SIZE GRAVEL.ETC.

DISTANCE TO WATER 13.3 0 ESTIMATE0 WATER LEVEL FROM- OMEASUREO ELEVATION ARTESIAN PRESSURE ___

DATE OF WATER L E V E L M E A S ~ R E M ~ N T A U X S ~ Z WATER USE A S E W ~ E . L L

CHEMISTRY

D A T E

TOTAL DISSOLVED. SOLIDS -md TEMPERATURE-~C pn S I L I C A ( S I 0 2 1 m e / I

CONDUCTANCE AT 25.C TOTAL IRON (Fa1 mg/l TOTAL HARDNESS (COC0,I mg/l Amhos/cm

TOTAL A L K A L I N I T Y (COCO,) mg/I PHEN. A L K A L I N I T Y (Ca COS) mg/I MANGANESE(Mn1 mg/l

COLOUR- ODOUR TURBIDITY

ANIONS mol1 p m CATIONS mg/l * p m

CALCIUM (CO)

MAGNESIUM (Ma)

SODIUM ( N a ) P O T A S S I U M (K) 33 I RON (DISSOLVE 0) 33 C A R B O N A T E (COS)

BICARBONATE (KO,)

SULPHATE (SO,) CHLORIDE ( C I )

NO8 t NO, (NITROGEN)

TKN. (NITROGEN)

P n o s P t i o R u s (PI

I

T K N T O T A L KJELDAHL NITROGEE( CHEMISTRY S I T E NO m&q/a NOc N I T R I T E NOS 9 NITRATE

CHEMISTRY F I E L D T E S T S TEST ey a. KA LY A) DATEP/AR.~~L~L EQUIPMENT u s E o MACH f i r

C o r r l a W ~ lS&/ - v ,

S U P 84' C m l f 8 - C~mnroc csoC,qq &.+MSS 8S ikht - O&U

CONTENTS OF FOLDER

0 D R I L L LOG O P U M P TEST DATA 0 ChEMICAL ANALYSIS

OSIEVE ANALYSIS 0 GEOPHYSICAL LOGS 0 REPORT

OTHER

SOURCES OF INFORMATION

I KilnLooPs S H c + v 6s PROOUCTION TEST SUMMARY

)ATE A & k L ! . h l rEST BY -&j.-kLL l B L L k S L \ T I P & 5 BAIL TESTO PUMP TEST^ DURATION OF T E S T - - ~ ~ ~ S

PVAILABLE DRAWDOWN SPECIFIC C A P A C I T Y ~ ~ X S

RATE -8.g L6 DRAWDOWN NATER L E V E L AT CO

'ERMEABILITY STORAGE COEFE r R A N S M I SS I V 1 T Y A ! v d ./KT

RECOMMENDED PUMPING RATE RECOMMENDED PUMP SETTING

I I I I I I I I 1 I 1 1 I I I I I I 1

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M. Schibli Water Wells R.R. *2. LUMBY, B.C. VOE 2GO * (604) 547.- 694 5

March 12, 1987

- PROGRESS INVOICE

Ministry of Environment S Parks, Water Management Branch, Parliament Buildings, Victoria, B.C. V8V 1x5

Re: Observation Well in Merritt, B.C. Ccntract No. 84

1.

4. 5. 6. 7. 8.

13.

1 4 . 15. 16.

Item Qvant ity - Mobilization, set up & demobilization 6" drilled, cased & sampled 6" drive shoe Screen assembly Assemble & install screen Hourly rate to do authorized

56 Feet

4 Hptr~s .R 5 Hours work

Mobilization &.demobilization of pumping equipment Install E, remove test pump Constant rat e pump ing.'t es t Standby for pumping equipment and crew 1 Hour Generator rental

6 Hours

TOTAL

Amount Bid Price -- Lump Sum $ 350.00 $ 22lft $ 1,232.00 Lump Sum 4 85.00 Lump Sum -f $ 387.72 $ lzo !W4 'J &p- $ 480.00

jird- $ 85/hr

Lump Sum Lump Sum $ 60/hr

$ 40/hr Lump Sum *

* See Attached Invoices

Yours truly

Max Schibli

$ 425.00

$ 500.00 $ 250.00 $ 360.00

4G. 00 $ 353.10

4 4,462.82

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SIEVE ANA L Y S 1 S

I.WT. SAMPLE I/2" rite and over

LWT. ENTIRE SAMPLE t 1.0 3. + 4.1 11331.8 I size and over I 1 5 . 2 % I %

i . PERCENT SAMPLE 1/2'

DEPTH INTERVAL SCREEN OPENING ( F E E T )

I 28 1168 I ,

SIEVE

m: The following sieve analysis doe8 the 112' sire and over.

include

INTERVAL - - SI E V E CWIM. WT. RET C9M. % CUYY. WT. R E I CUYY. X

NO. IN grams RET. IN qrams RET.

4 530.0 4b. 1 Q 744.2 65.9

?n 50

1020.0 1070.4 94.8

REM ARK S :

-~ ~

NUMBER M 20 16 IO a 6 4

I : I ! . I I I1 I I I I I 1 I I I I 1 I I ' I I f I I I 1 I I . 1 I 1 1 I

I GRAIN SIZE - SIEVE OPENING, IN THOUSANDTHS OF AN INCH

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SIEVE ANA L Y S 1 S ~

Cont rac t No. 84 'RO J E CT : Merri t t .OCATlON: 296 HELL NO.:

D. Kalyn iNALYSIS BY:

jAMPLE WEIGHT 8 INTERVAL IN grams -

. WT. CONTAINER + SAMPLE

!. WT. CONTAINER

L W T . SAMPLE less than 1/2* sire 1400.5

1. WT. S A M P L E 112" size 284.0 and over

1684.5 I 5.WT. ENTIRE SAMPLE

[ I . . 3. + 4.1

t i. PERCENT SAMPLE 1/2- rite ond over Yo

DEPTH INTERVAL SCREEN OPENING (FEET) 90% 5ovo 40% 30%

39 152 - 1 I I

SI E V E

w: The following sieve analysis doer & includr the m u rite and over.

NUMBER

I . , : I I ; r . I I I r I I I I I

10 20 30 *o 50 60 70 80 90 too IlO I20 1 3 0 I40 UO S O 170 Ibo

I I 1 : ; I I I 1 I I I I I I I I 4 i t ! . I I 1 I I * ! I I I 1 I I I I I

I . I

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GRAIN SIZE - SIEVE OPENING, IN THOUSANDTHS OF AN INCH

I I I I E I I I I I I I I I 1 I I

3.WT. SAMPLE less than 16 472.1 61.0

;. WT. SAMPLE I/Z" size 50 604.6 78.1 and over 780.4 100 621.4 8n.?

200 721.8 93.2

112" size 774.0 30 555.9 71.8

5.WT. ENTlRE SAMPLE I

DEPTH INTERVAL

I I

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SIEVE A N A L Y S I S -

'RO J E CT: Contract No. 84 I u: The fdlowing sieve analysis do88 includr

! me Vt" size and over. Merri tt -0CATlON:

I 296 NELL NO.: I INTERVAL

?. WT. CONTAINER 8 I 368.7 I 47.6 II

1 I I f

REM ARK S ; - 4 85 140 ---- SIEVE NUMBER

GRAIN SIZE - SIEVE OPENING, IN THOUSANOTHS o f AN INCH

- 22 -

Appendix B

Pump Test Data

m I

1 ,

' I I I B B I I I B I E E I I I I I I I

0 - 23 -

PUMPING TEST DATA PAGE 1 OF 3 - -

PROJECT: Observation We1 1 Network Program WELL NO: 296

LOCATION: Merri tt TEST: Constant Rate

START OF TEST: 11:17 March 4 , 1987 END: 17:17 March 4, 1987

REFERENCE POINT: ( f t ) 0.340 (m) above 10" 0 Surface Casing

PUMP I NG SETTING : m) below Ref. P t . (Top of 6" OI Casing)

STATIC WATER LEVEL: ( f t ) 4.390 m) bel ow Ref. P t . (Top of 6" 0 Casing)

( f t ) 12.0

By: D. Kalyn and M. Wei

I

- 24 -

60 5.070 0.680

70 5.072 0.682

12:37 80 5.072 0.682 78.5 31

90 5.073 0.683

100 5.073 0.683

120 5.071 0.681

140 5.072 0.682 -

I I

I

1 I

i I

Lab sample take by D. Kalyn

Hach t e s t by 1 vn

I I I

I I I I I I I I I I I I I I I I I 1 I

- 2 5 -

PUMPING TEST DATA PAGE - 3 OF - 3

~~

RE MARKS

lath t e s t by I. Wei a b sample taken lv D. Kalvn

’

hu t down pump

' I I

1 1 I I I 1 I 6 I I I I I 1 1 I 1 I

- 26 -

~ ~~~~

RECOVERY DATA PAGE 1 OF 2 --

PROJECT: Observation Well Network Program WELL NO: 296

LOCATION: Merri tt TEST: Constant Rate

REFERENCE POINT: ( f t ) 0.340 (m) above 10" 0 Surface Casing

STATIC WATER LEVEL: ( f t ) 4.390 ( m ) below Ref. P t . (Top of 6" 0 Casing)

by: D. Kalyn and M. Wei

RESIDUAL DRAWDOWN WATER LEVEL

I I I I I I I I

i 11 ~

' I 11 1 I I 1 I I I I I I I 1 I I I I

415 55 7.5 4.398 0.008

420 60 I 4.398 0.008

08:OO 1243 883 1.4 4.392 0.002

7

-

. . .. . ..

- 27 -

RECOVERY DATA

RESIDUAL DRAWDOWN WATER LEVEL

'AGE 2 OF 2 --

. . . .

REMARKS

V i r t u a l l y fully recovered

w k ~ SEMI-LOGARITHMIC 46 6012 - --. \ 4 CYCLES X 70 DIVISIONS Y i Y L I N U 5 A. 1

KEUFFEL L ESSER CO.

i

h, cn I

I I I I I I I I I I I I I I I I I I I

- 29 -

Appendix C

Water Qua l i ty Lab Analyses

Phone No.

I Audit Sample 387-1 11 5

0 Client study reference code ( ) Sampling agency code (14)

Site (E2C6918) MERRITT ODs. WELL NO. 296 I I Sample Adjective (

I This f o r m was processed to the computer on 5-i-1AH-1987 as REGULAR

Satnp le State (FWj Fresh Waker Sample Descriptor (GE) General

The C o s t for analgring samples f o r t h i s f o r m is

Routine analysis: $ 238.130

I T o t a l 8 239. 80

Sp o c ial analysis: .$; 0. 00 ----.-------- --

I

Conductance Specific ~I

Alkalinity Phen. 8. 3

I1 , Alkalinitq Total 4.5

I Hardness Dissolved I Silica Reactive Diss I Sulfate Dissolved

Aluminum I1 A r s e n i c I I I

Cobalt

7. 0

161

94

.< 0. 5

70. 9

75. 4

73. 5

11.2

7. 7

0. 03

< 0.001

22. 7

< 0.01

c 0. 1

pH units Automated pH Meter

uS/cm

"9 / L

m g /L

mg /L

mg /L

m g / L

mg / I ,

mg /I,

rng /L

mg /L

mg /L

m g / L

mg /L

Cond. Meter Siebold (C0111160/35/01)

GTavimetric 1. Ou FiltBr (007H1032/35/01)

Automated Electrometer (010112?1/35/01)

Automated Electrometer (01021210/35/01~

Calculated Result 1C107CALC/--/--)

Calculated Result (1107CALC/--/--)

Auto Molybdate-Blue Col. (11201381/35/01)

Auto Methyl Thqmol Blue (11211400/35/01)

N/H Dig: ICP Ana?. (Al-TC040/05/02)

N/H Dig: Hydride/ICP (As-T0180/05/02~

N / H Dig:ICP Anal. (Ca-T0040/05/02)

N/H Dig:ICP Anal. (Cd-T0040/05/02)

N/H Dig:ICP Anal. (Co-T0040/05/02)

I r o n I E a g n e s ium

Manganese I

M o i y b d enum

Nickel I I Lead E Vanadium I Zinc

Aluminum Dissolved I

< 0.01 mg /L N/H Dig:ICP Anal. (C~-T0040/05/02)

0. 02 mg /L N/'H Dig: IC2 A n a l . (Fe-T0040/05/02)

4. 54 mg /L N / H Dig: IC? Anal.' (Mg-T0040/05 iGZ! i

.:: 0.01 m3 /L N/H Dig:ICP Anal. (Mn-T0040/05/02)

-C 0. 01 m g / I , N/H g i g : IC? Anal. ( M c - T G @ 4 0 / 0 5 i 0 2 )

.< 0. 05 mg /L N/H Dig: ICP Anal. ( N i - T 0 0 4 0 / 0 5 / 0 2 )

< 0. 1 mg /L N/H Dig: IC? Anal. ( P b - T 0 0 4 0 / 0 5 / 0 2 )

< O . Q 1 mg /L N/H Dig: ICP Anal. ( V - - T O G 4 0 / 0 5 / 0 2 )

.< 0. 01 mg /L N/H Dig: IC? Anal. (Zn-T0040/05/02)

< 0.02 m g / L ICP Analysis (Ai-DC030/05/13)

6t.r s en ic D i s so 1 ved < 0.001 mg /L Hg dr i d e/ IC? Ana 1. (As-D0170/05/13)

Goron Dissolved

I < 0.01 mg /L ICP Analysis (B--D0030/05/13)

0. 03 m g / L ICP Analysis (Ba-D0030/05/13)

Cadmium Dissolved I Cobalt Dissolved I Chromium Dissolved

I Copper Dissolved

Iron Dissolved I I Potassium Dissolved I Magnesium Dissolved I Manganes'e Dissolved

< 0.01 mg /L ICP Analysis (Cd-D0030/05/13)

< 0. 1 mg /L ICP Analysis (Co-D0030/05/13)

< 0.01 mg /L ICP Analysis (Cr-D0030/05/13)

.c 0.01 mg /L ICP Analysis (C~-D0030/05/13)

0. 02 mg /L ICP Analysis (Fe-D0030/05/13)

0. 6 mg /L Auto. Flame Emmission (H--D1331/35/01)

4. 40 mg /L ICP Analysis (Mg-D0030/05/13)

< 0.01 mg/L ICP Analysis (Mn-D0030/05/13)

I ,Molybdenum Dissolved < 0". 01 mg/L ICP Analysis (Mo-D0030/05/13)

Nickel Dissolved I *C 0. 05 mg /L ICP Ana 1 q s i 5

(Ni-D0030/05/13)

I Lead Dissolved c 0. 1 mg /L

Vanadium Dissolved

I Zinc Dissolved

ICP Analysis (Pb-D0030/05/13)

c 0.01 mg /L ICP Analysis (V--D0030/05/13)

< 0.01 mg /L ICP Analysis (Zn-D0030/05/13)

I 1

I ' I I I I I I I I I I I

From : 87/03/04: 1255 T o : 87/03/04: 1255 Depth Range : o.'o 0. 0 Tide : Sample State: Fresh Water Sample Comment:

Parameter Description Result Units Analytical Technique ------------------------------.--------------------------------------------------

(Sparcode/Medium/Pres 'n 1 ................................................................................ Nitrogen Organic-Tot < 0.02 mg /L Calculated Result

(0112CALC/--/--)

Nitrogen Kjel. T o t ( N )

Nitrogen T o t a l

Nitrogen Amm. Diss(N)

Nitrogen NOZ+N02 I ) i s

Nitrogen NO3 Diss(N)

0. 02 mg /L Block Dig. Auto. Color (#1131360/35/01)

0. 20 mg/L Calculatsd Result (0114CALC/--/--)

< 0.005 mg /L Automated Bertholot rnsth (11081351/35/01)

0. 18 mg /L A u t o . Cadmium Reduction (11091350/35/01)

0. 10 m g / L Calculated Result (iIlOCALC/--/--)

Nitrogen NO2 Diss(N) < 0.005 mg/L Auto. Diazotization (11111354/35/01)

Phosphorus ar t . Dis-P

I Phosphorus Total (Sodium Dissolved

(Chloride Dissolved

I I I I

< 0.003 mg/L Auto. Ascorbic Acid (11181380/35/01)

< 0. 003 mg/L Dig. Auto. Ascorbic Acid . (P--T1390/35/01)

3. 7 mg /L Auto. Flame Emmission (Na-D1331/35/01)

1. & mg /L Auto. mercuric thiocyan. (11041330/35/01)

I

- 35 - MINISTHY O F ENVIRONMENT AND PARKS Page- 1

APR 10 1987 ENVIRONMENTAL LABG3ATORY R e p o r t f o r f o r m 00008865

ATTN: KALYN D J I 08-.Apr-87 Groundwater Br.- Water Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Site: E206918 MERRITT OBS. WELL NO. 296 ----------------_-_,-----~--------------------------------------------------------

Submitted b y (44954) KALYN D J I (Address (16) Water Management Branch

I Victoria, BC V8V 1x5

Groundwater Section 4 t h Floor, 765 Broughton Street

387-1 115

0

Phone No.

Aud it Samp 1 e Client study reference code ( 1 Sampling agency code (14)

Sits (E205919) MERRITT OBS. WELL NO. 296

I I (%mple Adjective ( 1

'This f o r m was processed to the computer on 5-MAR-19E7 as REGULAR

Sample State (FW) Fresh Water Sample Descriptor (GE) General

T h e cost for analyzing samples f a r t h i s f o r m is

R o u t i n e analysis: 9 239. 80

I T o t a l 3 238. 80

S p e c i a l analqsi;: . B 0. 00 -------------- I

I I I I I I I I

- 36 - ENVIRONPIENTAL LABORATCRY Report for form OQOOS365

Groundwater B r . - Water Program ATTN: KALYN D J Sample 86017468

MINISTRY OF ENVIRONMENT AND PARXS Page- 2

-------------------------------------------------------------------------------- ................................................................................ Site: E206918 MERRITT OBS. WELL NO. 296 ................................................................................

From : 87/03/04: 1600 To : 87/03/04: 1600 Depth Range : o.,a 0. 0 Tide :

Sample Comment:

Parameter Description Result Units Analytical Technique

'Sample State: Fresh Water

................................................................................ (Sparcode/Medium/Pr~s 'n 1 ................................................................................

7. 0 p H units Automated pH Meter

1 Conductance Specific 161 uS/cm Cond. Meter Siebold

(00041220/35/01)

(00111160/35/01)

Res. Filterable 1. Ou I Alkalinity Phen. 8.3 I Alkalinity Total 4. 5

I Hardness T o t a l

Hardness Dissolved I I S i l i c a Reactive Diss

(Sulfate Dissolved

< 0.5 mg /L Automated Electrometer (01#11211/35/01)

I Aluminum Arsenic I Icalcium

92 mg /L Gravimetric 1 . 0 ~ Filter . (C07H1032/35/01)

71. 8 mg /L Automated Electrometer (01051210/35/01)

70. 2 mg /L Calculated Result (0?07CALC/- - / - - )

73.3 my /L Calculated Result (liOiCALC/--/--)

11.3 m g / L Auto molybdate-Blue Col. (11201331/35/#1)

7. 4 mg /L Au.to Methyl Thymol Blue

< 0.02 mg /L N/H Dig:ICP Anal. (41-T0040/05/02 1

c 0.001 m g / L N / i i Dig: Hydride/ICP ( A s - T 0 1 8 0 / O S / 0 2 )

23. 7 mg /L N/H Dig:ICF Anal. (Ca-T0040/05/02)

< 0.01 mg /L N/H Dig:ICP Anal. ( C d - T 0 0 4 0 / 0 5 / C 2 )

c a. 1 mg /L W H Dig:ICP Anal. (C*-T0040/05/02)

I '

I ' I I I I I -I I

Chromium

C o p p e r

Iron

Magnosium

Maog an e 9 e

Moly b denurn

I V i c k e l I L.3 a d

Zinc I Aluminum Dissolved I Ar s en i c D i s s o 1 v e d I

,Boron Dissolved

Darium Dissolved

0. 0 1

-< 0. 01

.< 0. c31

4. 63

mg /L

mg /L

mg /L

mg /L

rng I'L

mg /L

m3 r'L

mg /L

rng / I -

rng /L

mg /L

m g / L

mg /L

mg /L

N/H Dig: ICP Ana?. (C~-T0040/05/G2)

NiH Dig: I C P Anal. (2~-T0040/05/02)

N/H D i g : ICP Anal. ' (Fe-T0040/(55/C2)

N/:i Dig: ICP Anal. (Mg-T0040 /G5 /02 )

N/H D i g : ICP Anal. (Mn-T0040/05/02>

td/s E f g : I C P A n a l . (Mo-TCG40/C5/02i

N/H Dig: ICP A v a l . ~Ni-TCC40/05/02)

N i ' H Dig: IC? Anal. ( f b - T C W G / G 5 / 0 2 ?

N!!i Elg: I C ? Anal. .( V--T004WQ5/C2 j

wx Dig: ICF Anal. ( Z ~ - T O W O / O ~ ; G ~ ~

I C ? Analysis ( Ai -D0030/05/ 13 1

Hy 4 7 i d e/ I C B Ana 1. (As-D0170/05/13)

ICP Analysis (B--D0030/05/13)

ICP Analysis (3a-D0030/05/13)

- 38 - 09-Apr-ai MINISTP,Y OF E N V I R O N M E N T AND PARKS Page- 4

ENVIRONMENTAL LABCRATORY Report for form OOOC8i355

ATTN: K A L Y N D J Sample 06017466 I .-

I I I

Groundwater Br.- Water Program -----------------------------.-------------------------------------------------- ------------------------------.--------------------------------------------------

Site: E206918 f l E R R I T T QBS. WELL NO. 296 ................................................................................ F r o m : 87/03/04: 1600 To : 87/03/04: 1600 Depth Range : 0.0 0.0 Tide : Sample State: F r e s h Water Sample Comment:

Parameter Description Result Units Analytical Technique --------------------------------------------------------------------------------

(Sparcode/Medium/Pres 'n) -------------------------------------------------------------------------------- (Calcium Dissolved

Cadmium Dissolved I Cobalt Dissolved I . .

Chromium Dissolved

Copprr Dissolved

Iron Dissolved I IPotassium Dissolved

I Magnesium Dissolved

22. 2

c 0.01

<: 0. 1

c 0.01

< 0.01

< 0.01

0. 6

4. 33

(Manganese Dissolved

(Molybdenum Dissolved

Nickel Dissolved I ,Lead Dissolved

Vanadium Dissolved

I -

Zinc Dissolved

< 0.01

.i: 0. 0 1

< 0.05

<: 0. 1

c 0.01

< 0.01

mg /L

mg /L

mg /L

mg /L

m g / L

mg /L

mg /L

mg /L

mg /L

mg /L

mg /L

mg /L

mg /L

mg /L

ICP Analysis (Ca-D0030/05/13)

IC? Analysis (Cd-~0030/05/13)

IC? Analysis (Co-D0030/05/13)

IC? Analysis (Cr-D0030/05/13)

I C P AnalcJsis (C~-DOO30/05/13)

IC? Analysis (Fe-D0030/05/13)

Auto. Flame Enmission (K--D1331/35/41)

ICP Analysis (Mg-D0030/05/13)

IC? Analysis (Mn-D0030/05/13)

ICP Analysis (Mo-DC030/05/13)

ICP Analysis (Ni-D0030/05/13)

ICP Analysis (Pb-D0030/05/13)

ICP Analysis (V--D0030/05/13)

ICP Analysis (Zn-D0030/05/13)

I

MINISTRY OF E$I???I&ENT AND PARKS Page- 5

1 Groundwater B r . - Water Program ATTN: KALYN D J Sample 86017468

: . 08-Apr-87 ENVIRONMENTAL LADORATORY Report for f o r m 00008865 ‘I .:.. -.

‘I 38==========================----================---------==============---------

Site: E206918 MERRITT OBS. WELL NO. 296 ................................................................................ F r o m : 87/03/04: 1600 To : 87/03/04: 1600

‘(Depth Range : 0:o 0. 0 Tide : I Sample State: Fresh Mater f sample Comment: ................................................................................ I Parameter Description Result Units Analytical Technique

(Sparcode/Medium/Pres‘n) ................................................................................ I Nitrogen Organic-Tot c 0.01 mg /L Calculated Result (C112CAlC/--/--)

I (01131360/35/01)

I Nitrogen Total 0. 16 mg /L .Calculated Result

Nitrogen Kjel. Tot(N) 0. 01 mg/L Block Dig. Auto. Color

(Gil4CALC/--/--)

Nitrogen Amrn. Diss(N1 c 0.005 mg /L Automated Bertholot meth (11031351/35/01)

Nitrogen N03+iU02 D i s 0. 15 mg /L Auto. Cadmium Reduction I I I

(110913S0/35/01)

Nitrogen NOS Diss(N) 0. 15 mg /L Calculated Result (1110CALC/--/--)

Nitrogen NO2 Diss(N) < 0.003 mg /L Auto. Diazotization (11111354/35/@1)

I Phosphorus O r t . Dis-P .< 0. 003 mg /L Auto. Ascorbic Acid

I Phosphorus Total < 0.003 mg/L Dig. Auto. Ascorbic Acid (P--T1370/35/01)

Sodium Dissolved 3. 7 mg /L Auto. Flame Enmission 1 (Na-D1331/35/01)

I (11041330/35/01)

(11181380/35/01)

Chloride Dissolved 1. 6 mg/L Auto. mercuric thiocyan.

I I I I I

I I I I I I I I I I I I I I I I I I I

- 40 -

Appendix D

Water Level Recorder I n s t a l l a t i o n Spec i f i ca t i ons

- 41 -

Ministry of Environment and p a r k q \ n E 0 RAN D U M Province of

British Columbia WATER MANAGEMENT

BRANCH ' I I I I 1 I I I I I 1 I I I I I I

TO: W . S . Hodge

Groundwater Section Water Man a gene n t Branch

- Senior Technician -Date: A p r i l 7, 1987

Our File: 0183613-B-296

Re: Establishment of Observation Well No. 296 - Merrit t , B.C.

Introduction

On March 5 , 1987, a Stevens water level recorder was installeG on the recently dr i l led observation well i n Merritt. T h i s well was dr i l led under government Contract No. 84 - "Drilling, Construction and Testing of One Groundwater Observation Well i n Merritt, B.C." The well i s located along Coldwater Avenue on Lot 3, Block 29, P l a n 570, KDYD ( see Figures 1 and 2 ) . T h i s property i s owned by the Crown and permission to d r i l l was granted by the British Columbia B u i l d i n g s Corporation.

The purpose of establishing this observation well i s t o monitor groundwater conditions i n the Merritt aquifer. The City of Merr i t t ' s residents rely exclusively upon groundwater for the i r domestic water supply. The potential e x i s t s f o r the City of Merr i t t ' s population to increase w i t h the new Coquihalla Highway now open and Merritt being on a major transportation route.

Well Construction

Date Drilled - March 2-3, 1987 Well Depth - 17.07 m (56 f ee t ) We1 1 Diameter - 152 mn (6 inch) Aquifer Description - Sand and gravel S t a t i c Water Level - 4.05 m (13.3 f ee t ) below ground level Dri 11 i ng Contractor - M. Schibli Water Wells

Recorder I n s t a l l a t i o n Specifications

1 A1 urninurn housing 1 1 1 127 mm di ameter f l oat 1 1 Viro lock

Wood recorder stand w i t h pul1e.y Stevens water level recorder w i t h quartz mu1 ti speed timer

10 m length of graduated f loa t tape

0 0 0 2

.- ... . . i . __. . . ... . .. ..

- 4 2 -

- 2 -

W.S. Hodge- Apr i l 7, 1987

Ground Level Datum Measurements (March 5, 1987)

Sta t i c Water Level t o Pointer - 5.475 m Ground Level t o Pointer - 1.430 m Tape Reading - 4.061 m

The correction factor t o be applied t o the tape reading i s therefore -0.016 metres.

Observer: 'Mr. Tom B a k a l u k Ministry of Forests and Lands Box 609 Merri tt, B.C. VbK 280 Telephone: 378-9315 (Warehouse)

or 378-9311

I I I I I I I I I I I I I I I I I I

D. Kalyn Technician Groundwater Section Water Management Branch 387-9458

DK/dma

cc: Mr. L. Hundal Water Management, Kamloops

- 43 -

Appendix E

Photographs

I I I I I I I I I I I I I I I I I I I

~ - 4 4 -

!?

I I I I I I I I I I I I I I I I I

- 45 -

I I I I

I

I

I I

I I I I I

- 4 6 -

r