addendum no. 2 project: broad run water reclamation

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ADDENDUM NO. 2

PROJECT: Broad Run Water Reclamation Facility 16.5 MGD Design Flow Expansion

Project – Sidestream Deammonification System

CONTRACT: RFP-2018-041-BRW.00002

To: Prospective Offerors of Record

Date: 11/20/2018

The following changes, additions, revisions, and/or deletions are hereby made a part of the

Contract Documents for the aforementioned Project as fully and completely as if the same were

fully set forth therein:

A. COVER PAGE

1. CHANGE the Proposal Due Date to “December 6, 2018”.

B. SECTION 1 – GENERAL REQUIREMENTS

1. In Paragraph 1.3.4, Procurement and Project Schedule, Table 1-1: Procurement Schedule,

CHANGE the Proposals Due date to “December 6, 2018”.

C. SECTION 2 – OWNER BOND REQUIREMENTS

NONE

D. SECTION 3 – PROPOSAL STATEMENT AND CONTENT REQUIREMENTS

2. RFP Section 3.2, Page 14, Second Paragraph, REPLACE “Section 3.4.2.h” with

“Section 3.4.2.g”.

3. RFP Section 3.3 Part 1.a REPLACE “systems” in the first line with “Sidestream

Deammonification Systems”.

4. RFP Section 3.3 Part 1.h.ii. DELETE item ii and replace with the following:

“Failure to provide the required submittals shall result in your firm receiving

reduced points for the “Experience and References” criteria for the Proposal

Evaluation Criteria provided in Section 4.”

5. RFP Section 3.4 Part 2.d.1 ADD the following:

“x. Reactor Influent Pumps

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1. Cutsheet of equipment to be provided conforming to Section 11130S.

2. Information in Table 3-6.

xi. Chemical Feed Systems

1. Cutsheet of equipment to be provided conforming to Section 11352S.

2. Information in Table 3-12.

Table Error! No text of specified style in document.-12: Chemical

Diaphragm Metering Pumps

Micronutrients

Brand Name

Chemical Concentration (%)

Specific Gravity

Freezing Point

pH

No. of Pump Units with one standby

Minimum Tubing Inner Diameter

Minimum Capacity

Maximum Capacity

Design Pumping Range

Discharge Pressure

Maximum Rotor Speed

Maximum Power Consumption

Drive Type AC, Variable Speed

Application Points Deammonification Reactor

6. RFP Section 3.4 Table 3-6 REPLACE the Table title with the following:

“Table 3-6: Submersible Non-Clog Pumps”

7. RFP Section 3.4 Table 3-7 REPLACE the Table title with the following:

“Table 3-7: Sidestream Deammonification System Performance (1)”

E. SECTION 4 – EVALUATION AND AWARD

NONE

F. SECTION 5 – CONTRACT COMPLIANCE REQUIREMENTS

1. RFP Section 5.2 Part 7 DELETE “Section 8,” in line 2.

2. RFP Section 5.8.4 Part 1.a.i REPLACE “30 days” in the last line of the paragraph with

“45 days”.

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G. SECTION 6 – GENERAL TERMS AND CONDITIONS

NONE

H. SECTION 7 – SPECIAL TERMS AND CONDITIONS

NONE

I. SECTION 8 - REFERENCE SPECIFICATIONS

1. Specification 01652S, Part 1.06.C.1 ADD the following:

“e. Biological Startup Operating Records.

f. Analysis of each failure/issue and a description of resolution activities.

g. Summary of any physical or control modifications made to achieve startup.”

2. Specification 01652S, Part 1.06.C.2 ADD the following:

“This report shall contain, but is not limited to, the following items:

a. Detailed description of the types of activities to be performed during the

Performance Testing.

b. Process Monitoring during Performance Testing (tank levels and temperature

values, dilution water and air flow rates, pH, and NH4-N values, etc.).

c. Sampling and Analyses to be performed during Performance Testing.

d. Anticipated Biological System Startup Schedule with Task Description and

expected level of personnel onsite.

e. Meeting schedule.

f. All the necessary checklists for the Engineer/Owner witnessing of the various

performance parameters required by the Specifications.”

3. Specification 01652S, Part 1.06.D.1 ADD the following:

“f. Analysis of each failure/issue and a description of resolution activities.”

4. Specification 11130S, Part 2.03.I DELETE Item I in its entirety.

5. Specification 11130S, Part 2.04.A REPLACE “pump manufacturer” with “Offeror”.

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6. Specification 11130S, Part 2.04.A REPLACE “the Microscreen Feed Pumps” with “for

each pump”.

7. Specification 11130S, Part 2.04.B DELETE the words “tank Biomass Retention System

station”.

8. Specification 11185S, Part 2.03.C REPLACE “100,000” with “85,000”.

9. Specification 11185S, Part 2.04.G REPLACE the second sentence with the following:

“Valve shall have a carbon steel body, with brass disc and shaft.”

10. Specification 11185S, Part 2.04.M DELETE item M (including its 9 sub-paragraphs) in

its entirety.

11. Specification 111853, Part 2.04 ADD the following after item N:

“O. A high temperature switch shall be provided for each blower as manufactured by

Ashcroft, Jumo or equal with a minimum opening range of 150° to 300°F. The

maximum temperature capability shall be 400°F. The switch may be combined

with the thermometer specified in Paragraph 2.04 K. Sensor shall be capillary

type with remote 3-3/4” brass bulb.

P. A high pressure switch shall be provided for each blower as manufactured by

Ashcroft, Type 400 in NEMA 4X enclosure, B4 Series or equal. The pressure

switch operating range shall be from 1 to 15 psig. The actuator seal shall be Viton

or equivalent and shall be suitable for air service up to 300°F. Pressure switches

shall have adjustable deadband, hermetically sealed switching element and 316

stainless steel pressure port.

Q. The high discharge temperature and pressure switches shall be pre-installed on

the discharge piping within the blower enclosure. All switches within the blower

enclosure shall be factory wired to a labeled terminal strip in a NEMA rated

junction box, housed within the blower sound enclosure. The Contractor shall

provide wiring from the terminal strip to the VFD.”

12. Specification 11185S, Part 2.07.B DELETE the following statement:

”One (1) oil filter per blower”

13. Specification 11200S A, Part 1.01.A.8 REPLACE the table with the following:

Parameter Furnish Installation Controls

Positive Displacement Blowers Offeror GC Offeror

Aeration System Offeror GC Offeror

Sidestream Reactor Feed Pumps Offeror GC Offeror

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Sidestream Deammonification Equipment

Offeror GC Offeror

Sodium Hydroxide Feed Piping GC GC Offeror

Micronutrient Feed System Offeror GC Offeror

14. Specification 11200S A, Part 1.02.C REPLACE the table with the following:

Parameter Unit

Startup Average Annual

Startup Maximum

Month

Design Average Annual

Design Maximum

Month

Plant Influent flow mgd 10.0 11.0 15.0 16.5

Equalized Centrate Flow(3) mgd 0.07 0.11 0.11 0.15

NH4-N mg N/L 856 735 808 697

TKN(1) mg N/L 923 806 881 775

Ortho-P mg P/L 14 to 50 14 to 50 14 to 50 14 to 50

TSS mg/L 100 100 100 100

sCOD mg/L 130 151 154 199

tCOD mg/L 236 257 260 305

Alkalinity mg

CaCO3/L 2,500 2,500 2,500 2,500

Minimum Temperature °C 25

Maximum Temperature °C 36

NH4-N Load %

Removal 80 70 80 70

TIN(2) Load %

Removal 70 60 70 60

(1) Offeror shall assume that all TKN is converted to ammonia in the reactor for air requirement calculations.

(2) Total Inorganic Nitrogen (3) Includes dilution water from 4.3% to 3% solids prior to dewatering.

15. Specification 11200S A, Part 1.03.A.3.c REPLACE the table column title “Demand

Guarantee” with “RFP System Performance”.

16. Specification 11200S A, Part 1.03.A.3.d REPLACE Note (2) in the table with the

following:

“(2) Each years usage will be calculated based on the following TIN load: Year 1:

133,000 lbs TIN Removed, Year 2: 147,000 lbs TIN Removed, Year 3: 161,000 lbs

TIN Removed, Year 4: 175,000 lbs TIN Removed, Year 5: 190,000 lbs TIN

Removed.”

17. Specification 11200S A Part 2.03.A.1 REPLACE Item 1 with the following:

“1. The Offeror shall provide start-up seed anammox granular biomass (seed

sludge). The Offeror shall provide the quantity of seed sludge to achieve the

target Mixed Liquor Suspended Solids (MLSS) for seeding submitted in the

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RFP. The Offeror shall provide additional seed sludge at not cost to Owner if

field inspection during seeding shows the quantity installed by the Contractor

does achieve the MLSS concentration specified.”

18. Specification 11200S A, Part 2.03.C.3 DELETE the words “and manual flow control

valves”.

19. Specification 11200S A, Part 2.03 ADD the following:

“G. CHEMICAL FEED SYSTEM

1. Sodium Hydroxide

a. Sodium Hydroxide shall be supplied to the Deammonification

Reactor by the existing Sodium Hydroxide feed system at the

BRWRF.

b. Offeror shall coordinate control signals and provide control

valve to supply Sodium Hydroxide to the Deammonification

Reactor.

c. Contractor shall provide interconnecting piping and supports.

2. Micronutrients

a. Micronutrients shall be supplied to the Deammonification

Reactor by a new chemical feed system.

b. Offeror shall provide Chemical Diaphragm Metering Pumps

and associated appurtenances per Section 11352S.


H. DRAIN GATES

1. Offeror shall provide Fabricated Stainless Steel Slide Gates as shown

on the drawings, as specified in Section 15205S and below.

15205 FABRICATED STAINLESS-STEEL SLIDE GATE SCHEDULE (ANSI/AWWA C561)

NO DESCR-IPTION

SIZE DESIGN HEAD1

GATE CONFIG- URATION

GATE MOUNT

ACTUATOR TYPE

OPEN DIRECTION (UP/DOWN)

ACTUATOR STAND MOUNT

SUBMERGED/ FREE

SURFACE WIDTH

(ft.) HEIGHT

(ft.) SEATING

(ft.)

UN- SEATING

(ft.)

2 DRAIN 1 1 24 10 SELF-

CONTAINED PIPE

MOUNTED ELECTRIC UP

BASE- PLATE

SUBMERGED

1) As measured from the gate invert to the maximum WSEL.

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I. REACTOR INFLUENT PUMPS

1. The Offeror shall provide the following:

a. Submersible Non-Clog Pumps as submitted in the RFP and in

accordance with Specification 11130S.

b. Variable Frequency Drives in accordance with Specification

16495S.

c. Valves as shown on the Drawings and as Specified in Division

15S.

2. The Contractor shall provide interconnecting piping and supports as

specified and as shown on the Drawings.”

20. Specification 11200S A, Part 2.07.C.1 ADD the following:

“f. Sodium Hydroxide and Micronutrient Addition

g. Sidestream Equalization Level Monitoring, Analyzer Monitoring, and

Draining.”

21. Specification 11200S A, Part 2.07.C.3 ADD the following:

“d. A control mode to divert flow around the reactor if total suspended solids or

other key parameter measure in the EQ tank exceeds an adjustable range for

reactor influent.”

22. Specification 11200S A, Part 3.01.A REPLACE the sentence “Standard field services

shall include:” with “Standard field services shall include the following as a

minimum:”

23. Specification 11200S A, Part 3.05.A.3.a.i. REPLACE the words “Grab sample” with

“Composite sample”.

24. Specification 11200S A, Part 3.05.A ADD the following:

“4. The Contractor shall provide onsite labor, under the supervision of the

Offeror, to assist with the maintenance and operation of the system.”

25. Specification 11200S A, Part 3.05.B.4 REPLACE the last sentence with the following:

“Over the remaining Biological System Startup Period, the Offeror shall, as a

minimum, be on-site four times for 2-day periods, excluding travel time.”

26. Specification 11200S A, Part 3.05.C.5 REPLACE the last sentence with the following:

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“The Offeror shall, as a minimum, be on-site for a total of 15 days over 3 trips,

excluding travel time.”

27. Specification 11200S B, Part 1.01.A.8 REPLACE the table with the following:






Offeror GC Offeror



28. Specification 11200S B, Part 1.02.C REPLACE the table with the following:

Parameter Unit

Startup Average Annual

Startup Maximum

Month


Design Maximum

Month



NH4-N mg N/L 856 735 808 697

TKN(1) mg N/L 923 806 881 775


TSS mg/L 100 100 100 100

sCOD mg/L 130 151 154 199

tCOD mg/L 236 257 260 305

Alkalinity mg

CaCO3/L 2,500 2,500 2,500 2,500



NH4-N Load %

Removal 80 70 80 70

TIN(2) Load %

Removal 70 60 70 60



29. Specification 11200S B, Part 1.02.D. REPLACE “276,760” with “207,570” in the table

for Equalization Volume per Train.

30. Specification 11200S B, Part 1.03.A.3.c REPLACE the table column title “Demand


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31. Specification 11200S B, Part 1.03.A.3.d REPLACE Note (2) in the table with the

following:




Removed”.

32. Specification 11200S B, Part 2.03.F.1 ADD the following:

“a. Variable Frequency Drives in accordance with Specification 16495S.”

33. Specification 11200S B, Part 2.03.G.2.b DELETE the words “and valves”.

34. Specification 11200S B, Part 2.03 ADD the following:

“H. CHEMICAL FEED SYSTEM

1. Sodium Hydroxide



BRWRF.



Reactor.


2. Micronutrients






I. DRAIN GATES




NO DESCR-IPTION SIZE DESIGN HEAD1

GATE MOUNT

ACTUATOR TYPE

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J. REACTOR INFLUENT PUMPS





16495S.


15S.



35. Specification 11200S B, Part 2.07.A.1 ADD the following:

“f. Sodium Hydroxide and Micronutrient Addition

g. Sidestream Equalization Level Monitoring, Analyzer Monitoring, and

Draining.”

36. Specification 11200S B, Part 2.07.A.3 ADD the following:

“e. A control mode to divert flow around the reactor if total suspended solids or



37. Specification 11200S B, Part 3.01.A REPLACE the sentence “Standard field services

shall include:” with “Standard field services shall include the following as a

minimum:”

38. Specification 11200S B, Part 3.05.A.3.a.i. REPLACE the words “Grab sample” with

“Composite sample”.

39. Specification 11200S B, Part 3.05.A ADD the following:



40. Specification 11200S B, Part 3.05.B.4 REPLACE the last sentence with the following:

WIDTH (ft.)

HEIGHT (ft.)

SEATING (ft.)

UN- SEATING

(ft.)




SUBMERGED/ FREE

SURFACE

2 DRAIN 1 1 24 10 SELF-

CONTAINED PIPE

MOUNTED ELECTRIC UP

BASE- PLATE

SUBMERGED


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41. Specification 11200S B, Part 3.05.C.5 REPLACE the last sentence with the following:



42. Specification 11200S C, Part 1.01.A.8 REPLACE the table with the following:






Offeror GC Offeror



43. Specification 11200S C, Part 1.02.C REPLACE the table with the following:

Parameter Unit

Startup Averag

e Annual

Startup Maximum Month


Design Maximum

Month



NH4-N mg N/L 856 735 808 697

TKN(1) mg N/L 923 806 881 775


TSS mg/L 100 100 100 100

sCOD mg/L 130 151 154 199

tCOD mg/L 236 257 260 305

Alkalinity mg

CaCO3/L 2,500 2,500 2,500 2,500



NH4-N Load %

Removal 80 70 80 70

TIN(2) Load %

Removal 70 60 70 60



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44. Specification 11200S C, Part 1.02.D. REPLACE “276,760” with “207,570” in the table

for Equalization Volume per Train.

45. Specification 11200S C, Part 1.03.A.3.c REPLACE the table column title “Demand


46. Specification 11200S C, Part 1.03.A.3.d REPLACE Note (2) in the table with the

following:




Removed.”

47. Specification 11200S C, Part 1.04.A.1.f. DELETE item in its entirety.

48. Specification 11200S C Part 2.03.A.1 REPLACE Item 1 with the following:

“1. The Offeror shall provide start-up seed anammox granular biomass (seed

sludge). The Offeror shall provide the quantity of seed sludge to achieve the

target Mixed Liquor Suspended Solids (MLSS) for seeding submitted in the

RFP. The Offeror shall provide additional seed sludge at not cost to Owner if

field inspection during seeding shows the quantity installed by the Contractor

does achieve the MLSS concentration specified.”

49. Specification 11200S C, Part 2.03.B.1.b ADD the following:

“ii. Offeror shall provide Variable Frequency Drives in accordance with

Specification 16495S.”

50. Specification 11200S C, Part 2.03.B.2 DELETE the words “and manual isolation

valves”.

51. Specification 11200S C, Part 2.03.C. ADD the following:

“3. Offeror shall provide Variable Frequency Drives in accordance with

Specification 16495S.”

52. Specification 11200S C, Part 2.03 ADD the following:

“H. CHEMICAL FEED SYSTEM

1. Sodium Hydroxide



BRWRF.

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Reactor.


2. Micronutrients






I. DRAIN GATES



J. REACTOR INFLUENT PUMPS





16495S.


15S.



53. Specification 11200S C, Part 2.07.C.1 ADD the following:


NO DESCR-IPTION

SIZE DESIGN HEAD1


GATE MOUNT

ACTUATOR TYPE



SUBMERGED/ FREE

SURFACE WIDTH

(ft.) HEIGHT

(ft.) SEATING

(ft.)

UN- SEATING

(ft.)

2 DRAIN 1 1 24 10 SELF-

CONTAINED PIPE

MOUNTED ELECTRIC UP

BASE- PLATE

SUBMERGED


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“g. Sodium Hydroxide and Micronutrient Addition

h. Sidestream Equalization Level Monitoring, Analyzer Monitoring, and

Draining.”

54. Specification 11200S C, Part 2.07.C.3 ADD the following:

“d. A control mode to divert flow around the reactor if total suspended solids or



55. Specification 11200S C, Part 3.01.A REPLACE Paragraph B in its entirety with the

following:

“A. The services of a qualified manufacturer’s technical representative shall be

provided by the Offeror in accordance with Section 11000S and Section

16522S. Standard field services shall include the following as a minimum:”

56. Specification 11200S C, Part 3.01 CHANGE the second Paragraph “C” heading to “B”.

57. Specification 11200S C, Part 3.05.A ADD the following:



58. Specification 11200S C, Part 3.05.B.4 REPLACE the last sentence with the following:



59. Specification 11200S C, Part 3.05.C.5 REPLACE the last sentence with the following:



60. Specification 11230S, Part 2.04.A REPLACE Item A with the following:

“A. Local Control Station shall be provided by Offeror as required on drawings and

Specified in Division 17S. Local Control Station shall be NEMA 4X stainless

steel.”

61. ADD Specification 11352S Chemical Diaphragm Meter Pumps attached to the

Addendum.

62. Specification 15013S, REPLACE “316L” with “304L” throughout the entire document.

63. ADD Specification 15105S Check Valves attached to the Addendum.

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64. ADD Specification 15205S Fabricated Stainless Steel Slide Gates attached to the

Addendum.

65. Specification 17120, Part 3.02.C DELETE the phrase “or CompactLogix”

J. SECTION 9 – REFERENCE DRAWINGS

1. REPLACE sheet I7501 with sheet I7501-ADD2 included as an attachment to

Addendum.


Addendum.


Addendum.


Addendum.


Addendum.

K. SECTION 10 – OTHER REFERENCE MATERIALS

NONE

Attachments to Addendum No. 2:

1) Reference Specifications Section 11352S – Chemical Diaphragm Meter Pumps

2) Reference Specifications Section 15105S – Check Valves

3) Reference Specifications Section 15205S – Fabricated Stainless Steel Slide Gates

4) Reference Drawings Sheet I7501-ADD2





9) Hydrex 6913 – Safety Data Sheet

END OF ADDENDUM

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QUESTIONS AND ANSWERS

The Owner offers the following interpretations and clarifications in response to Offeror questions

received by the 11/14/18 deadline for questions, pursuant to Section 7 – Special Terms and

Conditions of the RFP:

1. Section 11200S 1.02C Page 3: Please provide sidestream system influent Sulfides and

Calcium concentration.

Data is not available on these values. Offeror shall document assumptions made based

on previous Sidestream Deammonification System experience.

2. Section 11200S 1.02C Page 3: Please provide sidestream system influent tBOD, sBOD,

sTKN, sTP and NOx-N.



3. Section 11200S 1.02C4 Page 4: Based on the values of TSS and sCOD, the tCOD should

be < 500 mg/l. Please confirm.

Correct. See Addendum No.2 revisions to the RFP.

4. Section 5.8.5a Page 49: It is our understanding that costs for freight (domestic and

international) are not be included in the SDS supplier’s scope of supply and all freight

costs will be borne by the contractor. Please confirm.

The costs for freight are the responsibility of the General Contractor.

5. Section 11200S, 17800S, 17801S, 17803S, 17811S, 17823S, 17841S, 17843S, 17770S:

Please include alternate instrumentation and aeration systems such as S:Can and Sanitaire

respectively for use in the SDS.

The Division 17 specifications will remain as advertised with the listed manufacturers

and “or equal”. Offeror shall complete Table 3-1: Schedule of Prices for the system as

specified. Any cost savings measures proposed by the Offeror shall be submitted for

Owner consideration in Table 3-2: Potential Deducts in Section 3 of the RFP.

6. Section 11200S 1.02D Page 5: The SDS reactor dimensions are 30’ x 30’ x 20’ SWD. In

order to meet the performance requirements across the flow and load range, we would

like to submit on an optimized reactor size. Please confirm if that would be acceptable as

base bid.

Offeror shall complete Table 3-1: Schedule of Prices for the system as specified. Any cost

savings measures proposed by the Offeror shall be submitted for Owner consideration in

Table 3-2: Potential Deducts in Section 3 of the RFP.

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7. Section 11200S 1.02D Page 5: Please confirm that the influent minimum temperature of

25 °C is the basis of sizing and design of the SDS.

Correct.

8. Section 5.8.4 1 Page 46: The specification lists all submittals to be submitted to the

Owner’s Engineer within 30 days of executed procurement agreement. With associated

liquidated damages this is extremely short to enable us to provide quality, complete

submittals hence please increase to a minimum 60 days.

See Addendum No. 2 for revisions to the RFP.

9. Section 11200S 3.053C Page 24: The specification lists the requirement of a 90

consecutive days performance acceptance test. It is our understanding that vendor

physical presence onsite is needed for a total of 15 days over 3 trips for the complete

performance acceptance test. Please confirm.

As noted in Section 11200S Part 3.05.B.5 and C.6, in addition to the time onsite that is

specified, Offeror shall provide manufacturer’s services required for successful

completion of the Biological Startup and Performance Acceptance Testing.

10. Section 11200S 3.053C Page 24: It is our understanding that the performance test will not

be conducted by the SDS, but by the contractor/owner. The latter will also provide the

equipment and instrumentation to collect, analyze samples and operate the sidestream

deammonification plant/equipment, and the SDS would be present only to supervise.

Please confirm.

Section 11200S, Paragraph 3.05.A.1 states that Offeror/Contractor are responsible for

Project Commissioning, and Paragrapht 3.05.A.2 states that Offeror shall provide

trained personnel to operate the system. The Owner is only responsible for sampling as

defined in Part 3.05.A.3. Any additional sampling that may be required by Offeror for

Commissioning shall be provided by Offeror as stated in Part 3.05.A.3.a.i.

11. Section 3.4 Table 3.8 Page 24: It is our understanding that the concentrations for different

influent parameters including Ammonia-N and TKN are provided before dilution. Please

confirm. If not, please advise the dilution factor used.

See Addendum No.2 for revisions to the RFP.

12. Section 3.4 Table 3.8 Page 24: Please provide post THP sidestream deammonification

influent tBOD, sBOD, sTKN, sTP, Sulfides, Conductivity, TSS and pH.



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13. Section 11200S 1.02D Page 5: Mentions 35 gpm of dilution water is available. Please

advise source of dilution water and provide BOD, TSS, Ammonia-N, sTKN, sTP,

conductivity, alkalinity and temperature of the dilution water.

Dilution water will be provided from the permeate of the Membrane Bioreactor. Dilution

water noted in table will only be used for reactor cooling when required. Not all

parameters requested are available. Offer shall assume an average Ammonia-N of 0.05

mg/L, Nitrate-N of 2.5 mg/L, TP-P of 0.05 mg/L, and Alkalinity of 95 mg/L. Offeror shall

document all assumptions made on dilution water characteristics.

14. Section 11200S 1.02C Page 3: Mentions all influent TKN is converted to Ammonia-N in

the reactor. Since all influent TKN is converted to Ammonia-N, please confirm that there

is no recalcitrant organic Nitrogen in the influent and the effluent TIN removal

percentages can therefore be based off influent TKN.

Text specifically states that assumption should be made for air requirement calculations.

15. Section 11185S 2.03C Page 6: Mentions each lobe/shaft shall be supported by cylindrical

roller bearings sized for a minimum of 100,000 hours B-10 life. At the design conditions,

the blower that meets this does not have enough turndown. Please consider updating the

requirement to the blower's weakest bearing is greater than 85,000 or 10 years.


16. Section 11185S 2.04G Page 7: Mentions valve shall have a 304L stainless steel body,

with 316 stainless steel disc and shaft. Please consider changing valve materials to carbon

steel seat, brass valve disc/bushing, and aluminum cover including carbon steel shaft.


17. Section 11185S 2.04H Page 7: Mentions valves shall have 304L stainless steel bodies

with 316 SST shaft, plate, and springs. Please note that this is not a flapper type and the

swing plate is carbon steel encapsulated in EPDM. Kindly update.

Spec allows swing plate or flapper type valves as written.

18. Section 11185S 2.04J Page 7: Asks for both gauges and switches as well as Aertronic

digital controller. Since there is room for only one or the other, please consider changing

requirement to just Aertronic digital controller.


19. Section 11185S 2.04M Page 8: IP54 would be equivalent to NEMA 4 outdoor rated

enclosure. Please confirm.


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20. Section 11185S 2.06A5 Page 11: It is recommended to have Zinc plated enclosure

fasteners as SS causes binding. Please confirm this would be acceptable.

Stainless steel fasteners shall be provided as specified.

21. Section 11185S 2.07B Page 11: Please consider removing requirement as there is no oil

filter on the blower.


22. Section 11185S 3.01C Page 12: Since motors and blower stages are already tested, belts

get removed for shipping, hence no value is provided but it adds cost. Please consider

removing requirement.

Each blower assembly shall be shop tested as specified.

23. Section 11185S 3.01E5,6 Page 12: It is not possible to test these in full package but can

refer to ISO-1217report. Please consider removing requirement.

Shop test shall include air flow as scfm and icfm as specified.

24. Section 11185S 3.01F Page 12: Since it is not possible to test starter and VFD in the

field, please consider removing requirement.

Shop test shall be conducted over specified blower speed range as required.

25. Spec 11185S – Page 8 of the spec, Section 2.04 M – Is it absolutely necessary that

Aerzen Aertronic controllers are required to be supplied with the blowers? World Water

Works has five (5) operating systems with Aerzen blowers which do not include the

Aertronic Controller. We request that this requirement be removed.


26. In the snip below – it states – 3” plug valve with motorized actuator – however on

drawing I7501, (see snip below) there is no motors shown on the 2 plug valves. Please

confirm if they are to be motorized.

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Snip from M7503 Snip from I7501

Valves shown shall not be motorized as shown on Instrumentation Drawings.

27. In the Snip above from I7501 – it shows a Motorized plug valve on a drain line but this is

not shown at all on drawing M7503. Please confirm if that is to be required and supplied

by offeror.

The motorized plug valve shown on I7501 is correct. Items noted in Section 11200S and

as indicated on the PIDs shall be provided by the Offeror. All Drawings provided are for

reference in developing proposals but do not reflect the final design. Drawings M7501 –

M7506 were provided to show general equipment arrangement but do not reflect all

details of a complete system as proposed by the Offeror(s).

28. In the Snip below from I7501 – it shows a plug valve after the flow meter however on the

drawing M7503, no such valve is shown. Please confirm if that is to be required and

supplied by offeror.

The plug valve shown is not required. See Addendum 2 for modifications.

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29. From I7501 – What items if any are to be provided by Offeror? It would make sense for

the sensors (pH, TSS, NH4-N, Cond) to be the same make and model as those provided

in the Anammox reactor. Are these to be supplied by offeror or contractor?


30. From M7502 – What items are to be provided by Offeror? Only items with *?

Items provided by the Offeror shall be as specified in Section 11200S and as indicated on

the Instrumentation Drawings.

31. From M7503 – In Snip below – Shows 2 – 6 inch plug valves on both sides of the 6 inch

flow meter. However, on I7502 – See Snip below – it only shows 2 – motorized plug

valves on the discharge side of the flow meter. Please confirm if these plug valves on the

discharge side are to be motorized and if the ones up stream of the flow meter are to be

provided and if yes, manual or motorized?

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Upstream plug valves shall be manual and downstream plug valves shall be motorized.

See Addendum 2 for modifications.

32. From I7502 – From Snip below – there shows a plug valve on the retained biomass line,

however on drawing M7506 – there is no such plug valve labeled. Please confirm it is to

be supplied and if yes, manual or motorized.

The plug valve on I7502 shall be manual and provided by the Offeror as shown on the

Instrumentation Drawings.

33. On Drawing – I7503 – There is NO Drain in the tank – is that correct? On Drawing

I7504 – there are flow meters on the tank drain but on Drawing I7502 – there are no flow

meters on the tank drain? Please confirm if I7503 should have a drain and if all drains

should or should not have flow meters?

Flowmeter on Tank drain has only been included for systems that use the Tank Drain as

a method of biomass wasting. See Addendum 2 for modifications.

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34. Drawing M7502 – shows the 12 inch slide gates for both EQ tank and Anammox reactor,

however does not state they are motorized. Please confirm if they are to be motorized and

who is to supply them as comment on drawing M7502, “Reactor Internals to be provided

by offeror.

Items provided by the Offeror shall be as specified in Section 11200S and as indicated on

the Instrumentation Drawings. See Addendum 2 for modifications.

35. Drawing I7503, I7504 and I7502 – are there to be any level indicators in any of these

reactors?

Level indicators are not required in the reactors unless they are necessary and/or

recommended by the Offeror for control of their system.

36. Page 11 of PDF - Based on Part 1 of project having a maximum payment value of

$20,000 (see Section 5.8.6.2.a.i - Page 50 of PDF), and the project timeline for Vendor

equipment award by the Installation Contractor extending to June 2020 (see Table 1-2 on

page 9 of PDF), we request that both the Bid Bond and Performance Bond be removed.

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We have successfully worked with clients through detailed design, bidding, equipment

delivery and startup without any bond requirements (DC Water, Bay Park, Pierce

County).

The requirements for a Bid Bond and Performance Bond shall remain as described in the

RFP.

37. Entire Document – Can we get this document in Word to extract the tables and forms

which are needed for the proposal.

Loudoun Water is not able to offer the RFP document in Word format.

38. Page 14 of PDF - The reference to Section 3.4.2.h should actually be referencing 3.4.2.g.

Please confirm.

See Addendum 2 for revisions to the RFP.

39. page 15 of PDF - When requesting "supply of systems in municipal wastewater

treatment" - do you mean only side stream deammonification systems or are you talking

more general any type of treatment system?


40. Page 17 of PDF - Where is financial evaluation criteria in the Evaluation table found on

page 32?


41. Page 19 of PDF - Do you want both red-line copies of the mark ups of the P&ID's as well

as the specific vendor drawings as part of the submittal package?

Red line markups shall be provided with the Technical Proposal as required in Page 19

of the RFP. Vendor drawn P&IDs shall be provided as a future submittal as specified in

Section 11200S.

42. Page 23 of PDF - Please provide the chemical make up and SDS sheet for the Hydrex

6913 in order to calculate amount needed for the system. Also, is there any current

micro-nutrient data available on the dewatered material at this time? If yes, we would

request the following items - Copper, Nickel, Cobalt, Molybdenum, Zinc, Manganese,

Iron.



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43. Page 25 of PDF – Section 3.9 talks about “financial” information being provided as

confidential information but on page 17, it says all financial is not to be provided as part

of the proposal and only on a USB drive. Please confirm no financial information will be

required in the technical proposal printed document. Also, will an NDA be signed based

on the release of financial information?

Confirmed, financial information shall be included on a USB drive and not as part of the

technical proposal printed document. The Section 5.12 – Proprietary Information Form

discusses the handling of proprietary information. Additionally, Section 2.24342F of the

Code of Virginia as referenced in Section 5.12 of the RFP is provided as follows: “Trade

secrets or proprietary information submitted by a bidder, offeror, or contractor in

connection with a procurement transaction or prequalification application submitted

pursuant to subsection B of § 2.2-4317 shall not be subject to the Virginia Freedom of

Information Act (§ 2.2-3700 et seq.); however, the bidder, offeror, or contractor shall (i)

invoke the protections of this section prior to or upon submission of the data or other

materials, (ii) identify the data or other materials to be protected, and (iii) state the

reasons why protection is necessary. A bidder, offeror, or contractor shall not designate

as trade secrets or proprietary information (a) an entire bid, proposal, or

prequalification application; (b) any portion of a bid, proposal, or prequalification

application that does not contain trade secrets or proprietary information; or (c) line

item prices or total bid, proposal, or prequalification application prices.”

44. Page 35 of PDF - Item 7 - I believe you need to reference section 1.03 B 1 of the specific

specification section as Section 8 does not provide any details on the warranty.


45. Page 49 of PDT – Item 5.8.4.3.f – WWW can’t accept unlimited liability on any project.

Please remove reference to “will not have a limit”.

Please refer to Section 3.8 – Tab 7: Proposed Deviations of the RFP for language on the

submission of Offeror proposed deviations.

46. M7502 - Can you explain what the square piping is around the inside of the Anammox

reactor? We believe it’s a water spray system. Please confirm.

It represents a spray water system. Detailed piping arrangement will be developed by

Hazen during detailed design.

47. M7502 - No label on the slide gate in the Anammox reactor.

See Addendum No.2 for revisions to specifications and Instrumentation Drawings on

slide gate.

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48. M7503 - What are boundary limits for all the piping / valves / meters to be supplied by

Vendor or Contractor?

Items supplied by vendor shall be as specified in Section 11200 and as indicated on the

Instrumentation Drawings. If Offeror feels a boundary is unclear, Offeror shall note all

assumptions made in proposal.

49. I7501 - There is no note in top right saying Vendor to supply** - thus is all equipment /

instruments in this EQ tank supplied by contractor?


50. I7503 - There is no drain in this tank however on I7504 and I7502, there are drains. Is

that correct?


51. I7504 - There is an FIT/FE on the drain line in this drawing but no FIT / FE on drawing

I7502 and if there is supposed to be a drain on I7503, would it also have an FIT / FE?

Flowmeter on Tank drain has only been included on systems that use the Tank Drain as a

method of biomass wasting.

52. 11200S C page 2 - 1.01 - Point 8 - We would suggest putting control of the Sodium

Hydroxide feed into the Vendors Scope


53. 11200S C Page 3 – C - Are all the conditions listed I the table when only mesophilic

digestion is at the plant with NO THP?

Correct.

54. 11200S C Page 5 - 1.02 B 1. - In the table it lists volume of EQ tank at 276,760 gallons.

Yet on drawings M7505 where floor of reactor in EQ tank is 223.67 ft and overflow is

estimated at 245.25 ft (21.58 ft) and on drawing M7502 - EQ tank dimensions show 52 ft

long x 30 ft wide. This is only 33,664.8 ft3 or 251,813 gallons. Please confirm EQ

Volume.


55. 11200S C Page 7 - Point d.and table footnote (2) - Listed Years 1 - 5 and the TIN

removal in lb/year has higher removal values when dividing value by 365 then the

calculated loading from table on page 3. Please confirm what loadings are being treated

in years 4 & 5.

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56. 11200S C Page 7 - Point c. and table - Does Vendor need to use Hydrex or can they use

another product? Cost seem very high as listed on page 8 - Table. Can the SDS sheet,

formula be provided for the Hydrex product and the specific gravity?

The Hydrex SDS is attached for reference. Hydrex is being used as a common chemical

to evaluate proposals. Offeror shall provide RFP quantities for Hydrex but may propose

alternative micronutrients for the full scale system.

57. 11200S C Page 7 - Point c. and table - if PAT is operated at average flows and loads, how

is then MM numbers from table to be calculated?

PAT will be conducted on all centrate available at the time of testing. If loading rates

during testing reach MM specified loading rates then performance will be evaluated

based on the MM criteria. Any loading rates lower than the MM values will be evaluated

based on the AA criteria.

58. 11200S C Page 8 - 1.04 – A - Confirm requirement or Part 1 submittals within 30 days

after receipt of PO. Timing is un-realistic.


59. 11200S C Page 14 - 2.03 - A 1 - Are you asking for the design MLSS be provided as seed

sludge or just a portion of the design MLSS to allow ramp up of the system?


60. 11200S C Page 15- C.1 0 Mixer - WWW would like to request Landia for this project as

we do not use Flygt mixers. Is this acceptable?

The Submersible Mixer Specification will not be changed. Any alternative manufacturer

and/or cost savings measures proposed by the Offeror shall be submitted for Owner

consideration in Table 3-2: Potential Deducts in Section 3 of the RFP.

61. 11200S C Page 18 - G 1 - How many nozzles are provided in the spray system?

Drawings look like piping is 360 degrees while statement says 180 degrees. Please

confirm.

Details of the spray system will be developed by Hazen during detailed design.

62. 11200S C Page 24 - 3.05 A 1 b - Elaborate on the statement that Offeror must supply all

trained personnel, services required for the operation of the facility. Does this mean the

Offeror is required to be on site 100% of the time during commissioning and has to

operate the system and no help / support is provided by the WWTP staff?

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Offeror shall provide services/personnel required to operate the Sidestream

Deammonification System during Commissioning. Provisions for remote operating

capabilities have been included in Section 11200S along with the duration of minimum

required onsite services. However, Offeror shall provide services required for

Commissioning as specified in Section 11200S Part 3.05.

63. 11200S C page 26 table in section i.- add in conductivity.

Offeror shall provide additional conductivity measurements if applicable to their system.

64. 11230S Page 1 of PDF - Part 2 - 2.01 A. - We request that Landia submersible mixers be

an allowed mixer to use in the DEMON treatment system vs. the specified Flygt.




65. 11200S B 1.02.C and D - The process design basis provided in specification 11200S B

section 1.02C includes contributions from other sources, like the dilution water

mentioned in section 1.02.D. It is understood the values in the table are to be taken as the

basis of design for the SDS. Please confirm?

Correct.

66. RFP Document pg. 25 - ix. Operational information requested in Table 3-7 updated for

the Future operating conditions with THP. Please provide a table similar to the referenced

Table 3-7 in the RFP document without the verbiage/referencing Process Guarantee for

the future operating conditions with THP. At this time, please confirm a future process

design revision would be based on separate procurement process with it's own warranty

and guarantees for the future operating conditions with THP.


67. 11230S:2.01 A - Veolia will supply specially designed ABS mixers for the ANITAMOX

process in order to comply with the SDS warranty as mentioned in Spec section 11200S

B: 1.03. B. 1.




68. Section 17120S 2.01F Page 2 states that the PLC will be Allen Bradley Control Logix

with L72 processor however Section 17120S 3.02C Page 6 states that either Allen

Bradley Compact Logix or Control Logix PLC could be used. Please clarify.

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Part 3.02.C is the section that applies to Manufacturer Supplied PLCs. See Addendum

No. 2 for revisions to the RFP.

69. Section 17000S: Please advise if the reactor is in a classified area and classification if

applicable.

Reactor is located in an unclassified area per NFPA 820.

70. Section 17510S 2.01 Page 1: Please confirm that the SDS control panel would be located

in a climate controlled room.

Sidestream Deammonification System PLC and HMI will be located in a climate

controlled room.

71. Drawing I7502, I7503 and I7504: Please confirm that the motorized valves and

flowmeters at blower discharge and the manhole are by the Contractor and not by SDS

supplier.

All items specified in Section 11200 and noted with a * on the Instrumentation Drawings

shall be provided by the Offeror.

72. Drawing I7502, I7503 and I7504: Please advise function of PDIT on blower output and

confirm it is in Contractor’s scope of supply and not by SDS supplier.


73. Drawing I7505: Please confirm that the chemical feed systems and all associated

equipment and instrumentation are by the Contractor and not by SDS supplier.


74. Drawing I7505: Please confirm that the micronutrient pump, temperature switch and

(ASH 75) are connected to the MCC provided by the contractor and from where signals

are brought via Ethernet to the SDS control panel.


75. Drawing I7505: Please confirm that the pressure sensors (provided by the Contractor and

not SDS supplier) are manually monitored.


76. Section 17510S: Please confirm if a NEMA 4X enclosure is required for the SDS control

panel.

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Per Section 17510S-2.01D the PLC enclosure is not required to be NEMA 4X only if

located in an environmentally controlled room.

77. Section 11200S: Please confirm that the flowmeter (FIT 75-1901) is by the Contractor

and not SDS supplier and that the flowmeter output data would be available to the SDS

control panel via the MCC.


78. Section 17000S: Please confirm that the VFDs and starters for the pumps, mixers,

blowers and motorized valves shall be provided by the Contractor and not the SDS

supplier.


79. Page 1 of PDF, Due to the additional timeline for providing questions to specs, the need

to review all the answers to the original clarifications & comments and this second round

of comments & with Thanksgiving Holiday, we request a one (1) week extension to

submit the bid based on requirements till the 6th December 2018.


80. Section 11100S 2.3 I - Page 9 of 12 - Regarding insulated motor bearings - Flyt pumps

being used for feeding the Biomass Separation System. This pump model is not available

with an insulated upper bearing. Insulated support bearings come standard with our 600+

drive motors (high HP)


81. Section 09900, Alternative Paint for Flygt Pumps, Please review the attached five (5)

documents on their standard paint spec - Coating Presentation .pdf, Top Coat.pdf,

Primar.pdf, Coating pre-treatment.pdf, Standard Paint.pdf

Proposed coatings shall be submitted as future shop drawing submittals for evaluation.

82. Section 09900, Alternative Paint for Aerzen Blowers, Please review the attached

document on the standard paint used for Aerzen Blowers. They use powder coating and

special paints that are well suited for machinery and the high temperatures we encounter

with the blower packages. They have seen no issues with their paint system holding up

under adverse conditions experienced at a Water Reclamation Facility and the high

temperatures encountered with air handling equipment. We are requesting that the Aerzen

standard paint specification be accepted for this equipment. Aerzen Paint Spec.pdf

Proposed coatings shall be submitted as future shop drawing submittals for evaluation.

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83. Section 15170S - Low Voltage Motors, Aerzen proposes to provide WEG motors with

their blower packages. The WEG motors are equal in quality and performance to the

listed manufacturers.

The Low Voltage Motors Specification will not be changed. Any alternative

manufacturer and/or cost savings measures proposed by the Offeror shall be submitted

for Owner consideration in Table 3-2: Potential Deducts in Section 3 of the RFP.

84. Section 15170S Part 2.02 H. 2 - page 11 of 16 Clause requires all motors that are 50 HP

or higher to be individually tested at the factory before shipment. Will customer accept a

“like test” of the same size motor rather than individual tests of each motor? Testing each

motor will add a long lead time to the project.

Motors shall be tested as specified.

85. Section 15095S – Valves, 2.07 A - Page 5 of 20 of PDF, WATTS 709 - has been

discontinued. The new Part Number is LF709 and there are five (5) models, can the

engineer please choose what Back Flow Preventer they would like to specify for the

project.

It is unclear where back flow preventers are required for the Sidestream

Deammonification System. See Addendum No. 2 for revisions to the RFP to include a

check valve specification.

86. Section 11200S B:1.02:C The influent sCOD provided in the design basis table is only

10% of the TCOD, which entales the remaining 90% is particulate COD or PCOD.

Tpyically for deammonification applications, the ratio of PCOD:VSS is around 1.3-1.4,

which equates to a VSS of approximately 1000 mgVSS/L. The specification states the

centrate TSS values based on grab samples averages around 100-200 mg/L. The influent

sCOD, TCOD and TSS values provided in the specification are not consistent with each

other. Confirm the values provided in the table are correct?


87. RFP:3.4.2.f: What is the expected influent TSS for the future operating conditions with

THP centrate to properly design the clarification process downstream of the IFAS-Anita

Mox system.



88. The sCOD fraction seems too low (35-50% of TCOD) for THP centrate especially under

the design max month conditions. Confirm the values provided in the table are correct?

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The data provide is the current estimate for the THP centrate. This information will be

further evaluated prior to design of the future plant expansion. Offeror shall document

any assumptions made in the development of their future THP proposal.

33000.006:11/15/2018 11352S-1-A2 Broad Run Water Reclamation Facility Sidestream Deammonification System RFP 16.5 MGD Design Flow Expansion Project

SECTION 11352S

CHEMICAL DIAPHRAGM METERING PUMPS PART 1 -- GENERAL 1.01 THE REQUIREMENT

A. The Offeror shall furnish and Contractor install chemical metering pumps at the locations shown on the Drawings and as specified herein. All pumps shall be supplied by the same manufacturer.

B. Equipment shall be provided in accordance with the requirements of Section 11000S,

Equipment General Provisions and Section 11100S, Pumps - General. 1.02 OPERATING CONDITIONS AND PERFORMANCE REQUIREMENTS

A. Chemical Properties

1. The pumps shall be capable of handling the chemicals submitted in the RFP. B. Pump Performance Requirements

1. The pumps shall be capable of meeting the performance requirements specified by

the Supplier in the RFP. 1.03 SUBMITTALS

A. The following items shall be submitted with the Shop Drawings in accordance with, or in addition to the submittal requirements specified in Section 01302S; and Section 11000S, Equipment General Provisions

1. Submit pump manufacturer’s hydraulic calculations based on the metering pump

sizing submitted in the RFP.

B. Shop drawings shall include all pumps and accessories and shall be submitted as a complete system. Partial submittals will be unacceptable.

PART 2 -- PRODUCTS 2.01 ACCEPTABLE MANUFACTURERS

A. The Manufacturer shall be a company specializing in manufacture, assembly, and field performance of mechanical metering pumps with a minimum of five years experience.

B. The metering pumps shall be Sigma Series pumps as manufactured by Prominent Fluid

Controls, Inc., equivalent by, Milton Roy, Pulsafeeder or equal. 2.02 MECHANICALLY OPERATED METERING PUMPS

A. Motor operated chemical metering pumps shall be of the positive displacement, mechanical diaphragm type. The stroke frequency adjust mechanism, driven by a direct coupled,

05

21

09

BR


variable speed AC motor, shall actuate a convex-shaped, teflon-faced composite diaphragm. Solenoid driven pumps will not be accepted.

B. The supplier is responsible for the coordination of corrosion-resistant materials for the

chemical solutions specified. The manufacturer shall include all features as necessary for satisfactory operation of the pumping systems for chemical solutions specified. Pumps shall perform satisfactorily over the full range of solution concentrations specified. Pumps, motors and accessories shall be coated with a heavy duty protective epoxy coating resistant to the specified chemical to prevent corrosion.

C. The metering pumps shall be provided with an oil-lubricated gear reducer and cam-and-

spring drive mounted in an aluminum housing. The housing shall be sealed into an outer plastic housing for corrosion protection with heat sink fins for cooling.

D. The liquid ends shall include cartridge-type ball check valves. Conventional threaded valves

will not be allowed. Valve service or removal shall not require any disturbances to the pump head pipeworks.

E. The liquid end shall be physically separated from the drive unit by a back plate with weep hole creating an air gap. An elastomer shaft wiper seal shall prevent contamination of the gear box if the primary diaphragm fails.

F. The pump and motor shall be mounted on a common concrete base as indicated on the Drawings. The motor shall be direct coupled to the gear box.

G. Each pump and motor shall have a corrosion resistant nameplate giving the manufacturer's

model, serial number, rating, range, speed, and other pertinent data.

H. Acceptable materials of construction shall be as follows:

Micronutrients

Diaphragm PTFE faced

EPDM with Steel Core

Housing Material Glass-filled

Luranyl

Liquid End Material

PVC

Ball Check Valve PVDF with PTFE

faced Viton Gasket Seals

Ball Check Valve Balls

Ceramic

O Ring Seals Viton, EPDM,

Buna-N

Hardware 316 SS

2.03 ELECTRICAL AND CONTROLS REQUIREMENTS

A. Metering pump controls shall be microprocessor-based and shall be capable of remote analog operation. The pump shall accept a remote analog signal such that stroke frequency


is proportional to a 4-20 mA signal. A dry contact closure to the “pause” control function shall cause pump to halt operation and illuminate an indicator light on the pump control panel, in either manual or external pacing mode. The pump shall allow setting of a maximum stroke rate which corresponds to the maximum analog signal. Analog-to-digital converters external to the pump shall not be allowed. Local operator controls on the pump shall include stroke length control knob, stroke frequency control knob stroke frequency control up/down keys, program selection key, start/stop key, an LCD display, and indicating lights for fault annunciation. In addition to the analog control capability an SPDT relay output shall be provided for fault indication such as power supply failure, or loss of pacing signal.

B. Local adjustments and settings of the stroke length and stroke frequency shall be achieved

when the metering pump control is put in “manual” operation. Feed rate shall be controlled manually via a stroke length control adjuster. A percent scale and vernier shall indicate stroke length in 1% increments. Feed rate shall be infinitely adjustable from 0 through 100%. Repeatable metering accuracy shall be ± 2% of full scale, at constant hydraulic conditions, over the operating range.

C. Metering pump operating voltage shall be 120 VAC, 60 Hz, single phase. D. The electronic control system of the metering pump shall be continuously self-monitoring. In

the event of a system error in the microprocessor, the pump shall switch off and an alarm shall be annunciated.

2.04 METERING PUMP ACCESSORIES

A. The metering pump supplier shall furnish accessory equipment as specified herein and as shown on the Drawings including but not limited to the following:

1. Pressure gauges - Gauges shall be provided on the discharge of metering pumps.

Gauges shall be as specified in Section 17650. Each gauge shall have a range of zero to 100 psi. Each gauge shall be provided with a diaphragm seal as specified in Section 17650 constructed of materials which are completely resistant to corrosion by the chemicals referred to in this section. Each pressure gauge shall also be provided with an isolation valve. Isolation valves shall be PVC with seals that are resistant to the chemical applications.

2. Pressure relief valves – Valves shall be manufactured by the pump manufacturer

and shall be completely resistant to the chemicals for which they are provided. Sizing of the valves shall be the responsibility of the manufacturer and calculations shall be submitted with Shop Drawings.

3. Antisiphon/back pressure valves - Valves shall be manufactured by the pump

manufacturer and shall be completely resistant to the chemicals for which they are provided. Sizing of the valves shall be the responsibility of the manufacturer and calculations shall be submitted with Shop Drawings.


4. Pulsation dampeners - Diaphragm and body materials and configuration shall be supplied for the specific chemical for which the dampener is used without corrosion, wear, or other cause of abnormally short life. Each dampener shall be equipped with a charging valve and gas pad pressure gauge rated at 0 to 150 psi. Sizing of the pulsation dampeners shall be the responsibility of the manufacturer, and calculations shall be submitted with Shop Drawings.

5. Calibration Column –Calibration columns shall be constructed of transparent PVC

and shall be provided with threaded ends. Graduations shall be in mL and gallons. Each calibration column shall be sized such that at 50% pump capacity, the calibration column will be emptied in 60 to 90 seconds.

B. The Contractor shall furnish hard piping on the suction and discharge of each metering

pump. Materials of construction shall be completely compatible with the specified chemical.

2.05 TOOLS, SUPPLIES AND SPARE PARTS

A. The equipment manufacturer shall furnish all special tools necessary to disassemble, service, repair and adjust the equipment.

B. The manufacturer shall furnish a list of recommended spare parts.

PART 3 -- EXECUTION 3.01 MANUFACTURER’S FIELD SERVICES

A. The services of a qualified manufacturer's technical representative shall be provided in accordance with Section 11000A. For each series of pumps, field services shall include the following site visits as a minimum:

Service Number of Trips Number of Days/Trip

Installation and Testing 1 1

Startup and Training 1 1

Services after Startup 1 1

B. The Contractor shall be fully informed and shall be responsible to ensure that all Contractor's

employees, agents, and/or subcontractors are fully informed as to the hazards and proper procedures associated with working with and around the specified chemicals.


3.02 INSTALLATION

A. The Contractor shall furnish and install the metering pumps and all associated equipment and accessories as required and specified herein in accordance with manufacturer's instructions and in accordance with Section 11000, Equipment General Provisions. The Contractor shall install the pumps on concrete pedestals as indicated on the Drawings. Concrete pedestals shall be built to the required elevation, dimensions, level, and finish.

B. All metallic fasteners, brackets, mounting hardware, and accessories located in the storage

and feed areas shall be constructed of materials completely resistant to the specified chemicals.

C. The Contractor shall support piping adjacent to pumps such that no weight is carried on

pump casings. 3.03 TESTING, CLEANING, AND START-UP

A. All pumps shall be shop tested for capacity at rated pressure prior to shipment, with documented results provided.

B. The Contractor shall demonstrate to the Engineer that the completed systems meet the

functional requirements intended and that all components of the system are properly calibrated.

C. After installation of piping and accessories but before connection of piping to the storage

tank and pumps the Contractor shall completely flush the system to clean and remove all foreign matter from the piping system.

D. After chemical storage tanks are hydrostatically tested and the tanks and piping system are

cleaned, complete system hydrostatic tests and operational tests shall be completed with potable water. The Contractor shall check the functioning of all pump accessories, valves, and feed points and shall repair or replace all malfunctioning or unsatisfactory components. The Contractor shall repair all leaking joints and components identified during the test and through the one-year guarantee period.

- END OF SECTION -


SECTION 15105S

CHECK VALVES PART 1 -- GENERAL 1.01 THE REQUIREMENT

A. Reference Section 15000S, Basic Mechanical Requirements. B. Valves intended for chemical service shall be constructed of materials suitable for the

intended service. PART 2 -- PRODUCTS 2.01 SWING CHECK VALVES (WATER SERVICE)

A. Unless otherwise specified, check valves 3-inches and less shall be bronze, Y-pattern, swing check valves of the regrinding type. Valves shall have a minimum 200 psi non-shock cold water pressure rating and shall be as manufactured by Jenkins Bros. Corp., Crane Company, or equal.

B. Check valves larger than 3-inches shall be cushioned swing check valves rated for a

minimum working pressure of 200 psi and shall be of the "Shockless Swing-Check" type as manufactured by G.A. Industries, or equal.

C. Valve closure shall be controlled by an external weighted lever arm, the action of which is

cushioned by a hydraulic oil or pneumatic cylinder. Counterweights and cushion cylinders shall be designed so that adjustments can be made in the field to minimize surge and to prevent backflow and hammering noises during actual service conditions. The hydraulic oil or pneumatic cushion system shall be completely self-contained.

D. Valve bodies, cover discs, levers, and disc arms shall be constructed of heavy cast iron or

cast steel fully conforming to the latest revision of ASTM A-126 Class B or Class WCB, respectively. Valve ends shall be Standard American 125 pound flat-faced flanged, in accordance with ANSI B16.1. Each valve disc shall be suspended from a noncorrosive shaft which shall pass through a stuffing box and be connected on the outside of the valve to the cushion and counterweight mechanism.

E. Valve seating shall be rubber-to-metal designed for drop-tight shutoff. The body seat ring

shall be made of bronze or stainless steel and the disc seat ring of 80 Durometer rubber. Body and disc seats shall be renewable.

F. With the exception of the valve body and seat, all parts in contact with water shall be

manufactured from noncorrosive materials. Internal corrosive surfaces shall be shop painted with two coats of epoxy for corrosion resistance. Exterior surfaces shall be painted in accordance with the requirements of Section 09900, Painting.

01

03

14

BR


- END OF SECTION -


SECTION 15205S

FABRICATED STAINLESS-STEEL SLIDE GATES PART 1 -- GENERAL 1.01 THE REQUIREMENT

A. The Offeror shall furnish and Contractor install all fabricated stainless-steel slide gates complete with all accessories, special tools, spare parts, mountings, anchor bolts and other appurtenances as specified herein, as shown on the Drawings, and as required for a complete and operating installation. The gates and appurtenances shall be supplied in accordance with the latest edition of ANSI/AWWA C561 Fabricated Stainless-Steel Slide Gates, except as modified herein. The allowable leakage rate for the stainless-steel gates in this specification shall be ½ the allowable leakage rate listed in the latest revision of AWWA C561.

B. Equipment shall be provided in accordance with the requirements of Section 11000S,

Equipment General Provisions and Section 15000S, Basic Mechanical Requirements. C. Refer to Section 1200S, for further detail on gate location, dimensions, design criteria,

number required, etc. D. Manual and electric gate actuators (operators) shall be as specified in Section 15200S. E. The Contractor shall coordinate all details, locations, clearances, and other conditions with

the various equipment suppliers, so that the gates function as part of a complete system. 1.03 SUBMITTALS

A. The following items shall be submitted with the Shop Drawings, in accordance with or in addition to, the submittal requirements specified in Section 01302S, Submittals and Section 11000S, Equipment General Provisions: 1. Shop drawings showing dimensions, general construction, and materials used for all

parts of the gate and gate appurtenances. These drawings shall include sufficient detail to determine if the proposed equipment meets the requirements specified herein and must include individual drawings for each typical gate to be provided.

2. Certification that submitted gates are in accordance with the latest edition of AWWA C561, except as modified herein.

3. Design calculations demonstrating anchor bolt sizing and spacing in compliance with AWWA C561.

PART 2 -- PRODUCTS 2.01 GENERAL

10

15

18

BR


A. Subject to compliance with the Specifications, provide products manufactured by Golden Harvest, Hydro Gate, Rodney Hunt, Waterman, Whipps, or approved equal. The same manufacturer shall furnish all fabricated stainless-steel slide gate assemblies.

B. The gates and appurtenances shall be designed for installation in the structures shown on

the Drawings.

C. Gates shall be configured as self-contained or non-self-contained and shall be designed to mount to a thimble (E, F, or MJ) or directly to concrete (surface mounted or embedded) as indicated in Section 11200S.

D. Gates shall be either submerged or free surface gates as indicated in Section 11200S. 1. Submerged gates shall be sealed on all 4 sides.

2. Free surface gates shall be sealed on the bottom and both sides.

E. Gates shall be either flush bottom or conventional closure as shown on the Drawings.

F. Gate actuator shall be as identified in Section 11200S. G. Stainless-steel nameplates shall be permanently attached to each pedestal (floor stand),

yoke (bench), or torque tube (bench stand), indicating gate invert elevation, the Owner’s gate tag number, and the Manufacturer’s identification number.

2.02 FRAME AND GUIDES

A. The guides shall be integral with the frame. The frame assembly, including the guide members, invert member, and yoke member, shall be constructed of formed stainless steel plate with a minimum thickness of ¼-inch.

B. Flush-bottom closure type gates shall have a replaceable compressible resilient seal attached to the invert member of the frame. The seal shall be held in place with a retainer bar or molded into the frame invert. Designs that require the invert seal to be mounted on the slide shall not be allowed.

C. The guides shall be provided with holes for anchor bolts at a maximum spacing of 18-

inches. 2.03 SLIDE

A. The slide (disc) shall be stainless-steel plate reinforced with structural shapes of the same alloy welded to the plate.

B. Slide deflection shall not exceed 1/720 of gate width at maximum design head, or 1/16 in., whichever is less.

2.04 ACTUATOR SUPPORT/MOUNTING

A. Self-contained gates shall have a yoke formed by two (2) angles or channels welded at the top of the guides to provide a one (1) piece rigid frame. The arrangement of the yoke shall be such that the stem and slide can be removed without disconnecting the yoke. At


maximum operating load, yoke deflection shall not exceed 1/720 of gate width, or a maximum of ¼-inch, whichever is less.

B. Non-self-contained gates shall have a pedestal mounted to a reinforced concrete slab or reinforced concrete haunch, aligned with the gate stem.

2.05 STEMS AND STEM GUIDES

A. Unless otherwise indicated on the Drawings, all gates shall be rising stem.

B. Operating stems shall be designed to transmit in compression at least 2-1/2 times the rated output of the operating mechanism with a 40-pound effort on the crank or handwheel, or 2 times the stalled motor torque of the electric actuator, whichever is greater.

C. Keys or pins shall be stainless steel materials matching the alloy of the gate stem. All threaded and keyed couplings of the same size shall be interchangeable.

D. Stem guides shall be adjustable in two directions and shall be placed according to Manufacturer’s recommendation, but in no case shall spacing exceed 10 feet on center. In addition, stem slenderness ratio (l/r) shall not be greater than 200.

E. Rising stem gates shall be provided with an adjustable stop collar on the stem above and

below the actuator lift nut. Collars below the nut shall not be required for self-contained gates where the frame height equals the gate height plus the range of travel of the slide.

2.06 THIMBLES

A. Wall thimbles shall be provided when required by Section 11200S and shall be designed per the design head of the associated gate as specified in Section 11200S.

B. For compatibility, all wall thimbles shall be supplied by the gate manufacturer and shall be

stainless-steel of the same alloy as the gate.

C. Type “E” thimbles shall be used to connect to piping and shall be machined with tapped holes for the connecting pipe flange attaching studs.

D. Wall thimbles shall be internally braced during installation and shall be flush-mounted, unless otherwise recommended by the gate manufacturer.

E. The gate mounting (front) flange shall be machined with tapped holes for the gate frame attaching studs and have metal stamped vertical centerlines with the word “top” for correct alignment.

F. Square-bodied thimbles shall be provided with holes in the invert to allow satisfactory concrete placement behind the thimble.

G. A permanent hard-setting mastic or polyurethane closed cell foam gasket of uniform thickness shall be provided between the gate and the wall thimble. Alternatively, the gate manufacturer may provide precision machined mating surfaces between the gate frame and wall thimble and apply a mastic material to the surfaces to provide an acceptable seal. Regardless of the method used to seal the joint between the gate flange and the wall thimble, the final assembly shall meet the leakage criteria specified herein.


2.07 MATERIALS

A. Materials for gates shall conform to the following specifications:

1. Thimble, frame, guides, slide, yoke, stem, stem guides, stem couplings, rising-stem thrust nuts, and flush bottom seal retainer – ASTM A276, Type 304 stainless steel.

2. Non-rising stem thrust nuts and gate actuator lift nut – B584, CA 865 bronze. 3. Seats and stem guide bushings – ASTM D4020 UHMW-PE. 4. Seals – Neoprene, EPDM, or UHMW-PE. 5. Flush-bottom seal – Neoprene or EPDM. 6. Wedges (if required) – ASTM A276 Type 304 stainless steel or UHMW-PE.

7. Bolts, fasteners, and hardware – ASTM A276, Type 316 stainless steel.

PART 3 -- EXECUTION 3.01 MANUFACTURER’S FIELD SERVICES

A. The services of a qualified manufacturer's technical representative shall be provided in accordance with Section 11000S, Equipment General Provisions and shall include the following site visits for each series of gates:

Service Number of Trips Number of Days/Trip

Installation and Testing 1 2

Startup and Training 1 4

Services after Startup 1 1

3.02 INSTALLATION AND TESTING

A. Installation - The gates shall be set carefully in the locations shown on the Drawings in accordance with the installation manual furnished by the gate manufacturer.

1. The stems shall be provided with wall-mounted guides where required.

2. All gates shall be operated and tested to assure proper installation.

B. Testing - The completely assembled and installed gates shall be inspected for proper seating.

1. The gate slide shall be fully opened and closed in its guide system to ensure that it

operates freely.

2. Floorstands shall be shop-operated to ensure proper assembly and operation.


C. All gates shall be certified that at the operating head conditions indicated on the Gate Schedule, leakage shall not exceed 0.05 gallon per minute per foot of wet perimeter.

3.03 PAINTING

A. All ferrous parts, except stainless steel, of the gates and stem guides shall be blast-cleaned and painted in accordance with Section 09900S - Painting.

B. All machined iron surfaces, including drilled and tapped holes, shall be coated with a

protective grease.

C. The surfaces of the wall thimbles in contact with concrete shall remain uncoated. - END OF SECTION -

PH

TEMP

ALT

SIDESTREAM EQUALIZATION

TANK NO. 1

COND* TSS*

-

-

TO SIDESTREAM

TREATMENT REACTOR

120/1ES

120/1ES

120/1ES

120/1ES

120/1ES

PROCESSDRAIN

FROM DEWATERING

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PLCPLC

CENTRATE

REACTOR

INFLUENT PUMP

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REACTOR

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NO 2

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DRAIN

MANHOLE

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VFD

LCS

FAULT RUN RESET HOA

START STOP

FAULT HOA

120/1ES

MOV75-1701

P75-1501

P75-1502

LCS75-1501

AFD55-1501

MOG75-1503NH4*

120/1ES

NOTES:

1. ALL * ITEMS TO BE PROVIDED BY

SIDESTREAM DEAMMONIFICATION

SYSTEM MANUFACTURER.

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DO NOT USE FOR

CONSTRUCTION HAZEN AND SAWYER

4035 RIDGE TOP ROAD, SUITE 400

FAIRFAX, VIRGINIA 22030

BROAD RUN WATER RECLAMATION FACILITY

16.5 MGD DESIGN FLOW

EXPANSION PROJECT

33000-006

BRW.00002

NOVEMBER 2018P. YI

IF THIS BAR DOES NOT

MEASURE 1" THEN DRAWING

IS NOT TO FULL SCALE

CHECKED BY:

DRAWN BY:

DESIGNED BY:

PROJECT

ENGINEER:

REV ISSUED FOR DATE BY

0 1"1/2"

CONTRACT NO.:

HAZEN NO.:

DATE:

DRAWING

NUMBER:

K. SVEUM

J. VARELAS

I7501-ADD2

INSTRUMENTATION

SIDESTREAM DEAMMONIFICATION FACILITY

EQUALIZATIOND. EDWARDS

ADD2 SIDESTREAM RFP 11/18 KDS

PH*

DO*

TEMP

COND*

DEAMMONIFICATION

REACTOR NO. 1

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PROCESS DRAIN

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-

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-

MICRONUTRIENTS

-

NAOH

AIRFLOW

METER

FROM ANCILLARY BUILDING

FROM CHEMICAL BUILDING

NH4*

NOTES:




2. OFFERORS SHALL SUPPLY SEPARATE PID

FOR BLOWER CONTROLS.

HMIHMI

PLCPLC

-

FROM PROCESS DRAIN

*

BLOWER NO 1*

BLOWER NO 2*

MIXER*

VFD (TYPICAL)

BIOMASS

PUMP NO 1*

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RETAIN

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SEE NOTE 2

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LCS

MICROSCREEN NO 1*

SPRAY BAR

PUMP NO 1**

*

VFD

LCS

FAULT RUN RESET HOA

START STOP

FAULT HOA

VFD

FAULT RUN RESET HOA

START STOP HOA FAULT

AFD75-2101

B75-2101

B75-2102

AFD75-2701

LCS75-2701

MIX75-2701

P75-3101

P75-3102

AFD75-3101

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SCR75-3501

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EXPANSION PROJECT

33000-006

BRW.00002

NOVEMBER 2018P. YI




CHECKED BY:

DRAWN BY:

DESIGNED BY:

PROJECT

ENGINEER:


0 1"1/2"

CONTRACT NO.:

HAZEN NO.:

DATE:

DRAWING

NUMBER:

K. SVEUM

J. VARELAS

I7502-ADD2

INSTRUMENTATION

DEAMMONIFICATION REACTOR - DEMOND. EDWARDS


120/1ES

120/1ES

TSS*

NO3*

PH*

DO*

TEMP

COND*

PASSIVE

OVERFLOW

FROM EQ TANKS FROM ANCILLARY

BUILDING


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PROCESS AIR

REACTOR INFLUENT

FROM PROCESS DRAIN

PROCESS DRAIN

EFFLUENTMIXER*

NOTES:






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METER


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BLOWER NO 2*

FILTER

SILENCER

BLOWER NO 1*

****

SEE NOTE 2

FILTER

SILENCER

****

VFD (TYPICAL)

VFD

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FAULT HOA

AFD75-2101

B75-2101

B75-2102

AFD75-2701

LCS75-2701

MIX75-2701

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EXPANSION PROJECT

33000-006

BRW.00002

NOVEMBER 2018P. YI




CHECKED BY:

DRAWN BY:

DESIGNED BY:

PROJECT

ENGINEER:


0 1"1/2"

CONTRACT NO.:

HAZEN NO.:

DATE:

DRAWING

NUMBER:

K. SVEUM

J. VARELAS

I7503-ADD2

INSTRUMENTATION

DEAMMONIFICATION REACTOR - ANITAMOXD. EDWARDS


PASSIVE OVERFLOW

MANHOLE MANHOLE

PH*

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TEMP

INTERNAL*

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DEAMMONIFICATION REACTOR

NO. 1

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HMIHMI*

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PROCESS AIR

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-

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PROCESS DRAIN

FROM PLANT DRAIN

REACTOR INFLUENT

NOTES:






VFD (TYPICAL)

****

FILTER

SILENCERSEE NOTE 2

BLOWER NO 1*

FILTER

SILENCER

BLOWER NO 2*

SEE NOTE 2

****


*

AIR FLOW

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PRELIMINARY DRAWING

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EXPANSION PROJECT

33000-006

BRW.00002

NOVEMBER 2018P. YI




CHECKED BY:

DRAWN BY:

DESIGNED BY:

PROJECT

ENGINEER:


0 1"1/2"

CONTRACT NO.:

HAZEN NO.:

DATE:

DRAWING

NUMBER:

K. SVEUM

J. VARELAS

I7504-ADD2

INSTRUMENTATION

DEAMMONIFICATION REACTOR -

ANAMMOPAQD. EDWARDS


MIX75-4101

MICRONUTRIENT*

IBC TOTE

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LCS75-4101

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PRELIMINARY DRAWING

DO NOT USE FOR






EXPANSION PROJECT

33000-006

BRW.00002

NOVEMBER 2018P. YI




CHECKED BY:

DRAWN BY:

DESIGNED BY:

PROJECT

ENGINEER:


0 1"1/2"

CONTRACT NO.:

HAZEN NO.:

DATE:

DRAWING

NUMBER:

K. SVEUM

J. VARELAS

I7505-ADD2

INSTRUMENTATION

CHEMICAL SYSTEMSD. EDWARDS


Safety Data Sheet

1 – PRODUCT IDENTIFICATION

PRODUCT NAME: ...................... Hydrex 6913

PRODUCT NUMBER: ................. HYDREX6913

OTHER MEANS OF IDENTIFICATION: .................. Purple Liquid, slight odor.

RECOMMENDED USE: ............. Nutrient additive for biological process. Not for use in drinking water.

RESTRICTIONS ON USE: ......... Use only as directed.

MANUFACTURED BY: ............. RIVER BEND LABS A DIV OF CHEMTRON CORPORATION

3500 HARRY S. TRUMAN BLVD

ST. CHARLES, MO 63301

(P) 636-940-5445 (MON-FRI 7:30-4:00)

www.riverbendlab.com

EMERGENCY PHONE: .............. (800) 424-9300 (CHEMTREC)

REVISION NUMBER: ................. JULY 15, 2015

2 – HAZARDS IDENTIFICATION

EMERGENCY OVERVIEW: ..... Corrosive, purple acidic liquid with a slight characteristic odor. Product is corrosive to eyes,

skin, respiratory system, and some metals. May react exothermically (get hot) with alkali.

Product is not flammable.

CLASSIFICATION 29 CFR 1910.1200: ....................... Product is hazardous by OSHA criteria.

Corrosive to skin ............................. category 1, subcategory 1B

Serious eye damage ......................... category 1

STOT-SE, respiratory system ......... category 1

STOT-SE, gastrointestinal system .. category 1

Corrosive to metals ......................... category 1

Skin sensitizer ................................. category 1A (nickel chloride)

Respiratory sensitizer ...................... category 1A (nickel chloride)

Toxic to Reproduction .................... category 1B (boric acid, oral exposure)

STOT-RE, central nervous system .. Category 1 (manganese sulfate)

Carcinogen ...................................... category 1A (nickel chloride)

Germ cell mutagenicity ................... category 2 (nickel chloride)

For

Crown Solutions Co.

945 S. Brown School Rd

Vandalia, OH 45377

937-890-4075

http://www.riverbendlab.com/

Safety Data Sheet

GHS SIGNAL WORD: ................. Danger

GHS HAZARD STATEMENTS: ................................. H314: Causes severe skin burns and eye damage.

H332: Harmful if inhaled; Causes damage to respiratory system.

H302: Harmful if swallowed: Causes damage to digestive system.

H290: May be corrosive to metals.

H317: May cause an allergic skin reaction.

H334: May cause allergy or asthma symptoms or breathing difficulties if inhaled.

H361: Suspected of damaging fertility or the unborn child based on oral exposures to rats

reported in the literature.

H372: Causes damage to organs through prolonged or repeated exposure.

H350: May cause cancer.

H341: Suspected of causing genetic defects.

GHS PRECAUTIONARY STATEMENTS: ................ P202: Do not handle until all safety precautions have been read and

understood.

P262: Do not get in eyes, on skin, or on clothing.

P281: Use personal protective equipment as required, Wear eye protection and protective

industrial rubber gloves. When conditions warrant use, add face shield, apron, and/or rubber

boots.

P260: Do not breathe dust/fume/gas/mist/vapors/spray.

P285: In case of inadequate ventilation wear respiratory protection.

P264: Wash ... thoroughly after handling, wash gloves and contaminated surfaces.

P272: Contaminated work clothing should not be allowed out of the workplace.

P305+351+338: IF IN EYES: Rinse cautiously with water for several minutes. Remove

contact lenses if present and easy to do – continue rinsing for 15 min. call a doctor.

P303+361+353: IF ON SKIN (or hair): Remove/Take off immediately all contaminated

clothing. Rinse skin with water/shower. Immediately, call a doctor.

P363: Wash contaminated clothing before reuse.

P304+341: IF INHALED: If breathing is difficult, remove victim to fresh air and keep at rest

in a position comfortable for breathing.

P301+330+331: IF SWALLOWED: Rinse mouth. Do NOT induce vomiting.

P309+311: IF exposed or you feel unwell: Call a POISON CENTER or doctor/physician.

Keep only in original container.

P405: Store locked up.

P501: Dispose of contents/container in accordance with local state and federal regulations.

HAZARDS NOT OTHERWISE CLASSIFIED: .......... None known.

INGREDIENTS WITH UNKNOWN TOXICITY: ..... None Known.

POTENTIAL ENVIRONMENTAL EFFECTS: .......... Significant contamination of small bodies of surface water or localized

areas at the point of a spill may depress pH levels below tolerable levels for aquatic organisms.

Product contains less than 1% of several ingredients that are toxic to fish and other aquatic

organism. The boric acid ingredient (together with other ingredients) may damage plant life if

concentrated product is dumped in the environment.

Safety Data Sheet

3 – COMPOSITION / INFORMATION ON INGREDIENTS

HAZARDOUS INGREDIENT PERCENT CAS NUMBER

Zinc Sulfate 1-5 7733-02-0

Managanese Sulfate 1-5 7785-87-7

Citric Acid 1-5 77-92-9

Boric Acid 0.1-1 10043-35-3

Nickel Chloride 1-5 7718-54-9

Cobalt Sulfate 1-5 10124-43-3

The exact percent by weight of the ingredients in this formulation is proprietary.

4 – FIRST-AID MEASURES

INHALATION: ............................. If inhaled: If breathing is difficult, remove person to fresh air and keep comfortable for

breathing. If experiencing respiratory symptoms: Call a doctor.

INGESTION: ................................. If swallowed: Rinse mouth. Do NOT induce vomiting. Immediately, call a poison control

center or doctor.

EYES: ............................................. If in eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present

and easy to do. Continue rinsing for 15 minutes. Immediately, call a doctor.

SKIN: ............................................. If on skin (or hair): Immediately, take off all contaminated clothing. Rinse skin with water.

Use safety shower if available. Immediately, call a doctor.

ACUTE SYMPTOMS: ................. Irritation or burns to eyes, skin, or mucous membranes. Injury may result in permanent

damage to eyesight or permanent scars on skin.

DELAYED EFFECTS: ................. Skin or respiratory sensitization is possible. Note additional information in Section 11.

IMMEDIATE OR SPECIAL TREATMENT REQUIREMENTS: After contact with product, immediately flush eyes and/or

skin with water for 15 minutes. If safety shower or eye wash is plumbed to cold water, it may be necessary to move victim to a

locker room shower or elsewhere to obtain a lukewarm water source before the 15 minute flush is complete. After the 15 minute

flush, seek medical treatment.

5 – FIRE-FIGHTING MEASURES

FLASHPOINT: ............................. Product is corrosive to eyes, skin, and respiratory system. Closed containers may rupture (due

to buildup of pressure) when exposed to extreme heat. Thermal decomposition under fire

conditions may produce corrosive aerosols, metal oxide fumes, oxides of sulfur, and hydrogen

sulfide (toxic & flammable).

EXTINGUISHING MEDIA:........ Product is not flammable. Use media appropriate for surrounding fire.

SPECIAL FIRE FIGHTING PROCEDURES: ............ Wear self-contained breathing apparatus and full turn-out gear. Approach

fire from upwind direction. If possible, move containers away from fire. Cool fire exposed

containers with water spray. If containers rupture or leak, product may evolve irritating or

toxic gas under extreme heat.

6 – ACCIDENTAL RELEASE MEASURES

SPILL PROCEDURES: ............... Contain and collect spills with commercial absorbents. Unused product or spill cleanup

residues may be RCRA hazardous waste by the characteristic of corrosivity (D002). Consult

local authorities for appropriate waste disposal options in your location.

Safety Data Sheet

PERSONAL PRECAUTIONS: .... Wear chemical splash goggles and protective industrial rubber gloves. When conditions

warrant use, add face shield, apron, and/or rubber boots. If spill escapes to sanitary sewer,

notify local public works authorities. If spill escapes to the environment, notify state and

federal EPA and, if appropriate, the Coast Guard. The CERCLA RQ for ferric sulfate is 1,000

lbs. Product contains 15-30% ferric sulfate.

7 – HANDLING and STORAGE

STORAGE: .................................... Store product in closed container in well ventilated, secure area. Protect containers against

physical damage. Protect label. Empty containers retain product residues and all label hazards

are still present until container is thoroughly cleaned.

HANDLING: ................................. Open container slowly until pressure is relieved. Avoid spillage. Clean up small spills and

drips promptly. Protect product from contamination. Avoid contact between this product and

other chemicals, especially bases. Avoid contact with metals during handling. Do not transfer

into metal containers. The recommended disposal for rinse waters from empty units is

discharge to the treated system.

8 – EXPOSURE CONTROLS / PERSONAL PROTECTION

EXPOSURE LIMITS: .................. Exposure limits for the formulated product are not established.

PROTECTIVE CLOTHING: ...... Wear chemical splash goggles and protective industrial rubber gloves. When conditions

warrant use, add face shield, apron, and/or rubber boots.

ADDITIONAL MEASURES: ...... General exhaust ventilation is adequate. Employ work practices and product transfer practices

that avoid spills, drips, or contact with any incompatible material.

INGREDIENT SOURCE & PARAMETER EXPOSURE LIMIT

Manganese sulfate, as manganese, ACGIH TWA 0.1 MG / M3

inorganic compounds as manganese

metal

NIOSH IDHL 500 MG / M3

Boric acid, as borate compounds, ACGIH TWA 2 mg / m3

inorganic ACGIH STEL 6 mg / m3

Nickel chloride, as soluble inorganic

compounds

ACGIH TWA 0.1 mg / m3

Cobalt sulfate, listed as cobalt and

inorganic

ACGIH TWA 0.02 mg / m3

compounds, exposure limit as Co

NOTE: ............................................ OSHA - Occupational Safety and Health Administration; ACGIH - American Conference of

Governmental Industrial Hygienists; NIOSH - National Institute for Occupational Safety and

Health; PEL - Permissible Exposure Limit; TWA - Time Weighted Average; TLV - Threshold

Limit Value; REL - Recommended Exposure Limit; STEL - Short Term Exposure Limit;

IDLH - Immediately Dangerous to Life or Health. OSHA - Occupational Safety and Health

Administration; ACGIH - American Conference of Governmental Industrial Hygienists;

NIOSH - National Institute for Occupational Safety and Health; PEL - Permissible Exposure

Limit; TWA - Time Weighted Average; TLV - Threshold Limit Value; REL - Recommended

Exposure Limit; STEL - Short Term Exposure Limit; IDLH - Immediately Dangerous to Life

or Health.

Safety Data Sheet

9 – PHYSICAL / CHEMICAL PROPERITES

APPEARANCE/ORDER: ............ Purple acidic liquid.

ODOR: ........................................... Slight characteristic odor.

BOILING POINT: >212º F

VAPOR PRESSURE: ................... Not known, similar to water.

VAPOR DENSITY (AIR=1): ....... Not known, similar to water.

SPECIFIC GRAVITY: ................. Specific gravity, 1.06-1.1

pH: .................................................. 1-2.5

SOLUBILITY IN WATER: ......... Completely miscible in water.

FLAMMABILITY: ....................... Not flammable.

EVAPORATION RATE: ............. Similar to water.

MELTING POINT/FREEZING POINT: ~30º F

10 – STABILITY and REACTIVITY

REACTIVITY: .............................. Product may react exothermically (get hot) with alkali (bases). Product may also react with

other materials that are incompatible with acidic aqueous solutions.

STABILITY: ................................. Stable at ambient temperatures and pressures

HAZARDOUS POLYMERIZATION: ......................... May react with alkali (bases) releasing heat. Corrosive liquid may boil

and splatter. Polymerization will not occur.

INCOMPATIBILITY: .................. Akali (bases). Also, avoid contact with some metals, including aluminum, zinc, copper, brass,

bronze, lead, and tin. Also avoid contact with nylon.

HAZARDOUS REACTIONS: ..... Contact with alkali (bases) or other incompatible materials.

HAZARDOUS DECOMP: ........... Metal oxide fumes, oxides of sulfur (notably sulfur dioxide), hydrogen sulfide.

11 – TOXICOLOGICAL INFORMATION

LIKELY ROUTES OF EXPOSURE: ........................... Eye or skin contact; inhalation of mist or aerosol

TOXICOLOGICAL CHARACTERISTICS: ............... Product is corrosive to eyes, skin, mucous membranes, and other tissues.

Contact will irritate or burn eyes and skin. Permanent damage to eyesight is possible.

Permanent scars are possible. Significant, potentially life threatening damage to critical

respiratory or gastrointestinal systems is possible following overexposure. Inhalation of

product in mist or aerosol form may do serious damage to respiratory system by burning

tissues. Similar damage to the gastrointestinal system is possible following ingestion.

Consequently, product is classified as a specific target organ toxicity - single exposure (STOT-

SE) hazard for inhalation (respiratory system) or ingestion (digestive system).

LISTED CARCINOGEN: ............ Product contains >0.1% nickel chloride. Nickel chloride is listed as a carcinogen by IARC,

NTP, and OSHA. Product also contains cobalt sulfate, an ACGIH A3 carcinogen - animal

carcinogen; unknown relevance to humans.

DELAYED EFFECTS: ................. Skin or respiratory sensitization is possible. Product contains boric acid. Borates are suspected

of damaging fertility or the unborn child (based on high dose laboratory animal studies

indicating damage to testes and fetal abnormalities). Product contains nickel chloride. Nickel

chloride is a skin and/or respiratory sensitizer, a carcinogen, and a germ cell mutagen. Product

contains manganese sulfate. Manganese sulfate is a neurotoxin. Chronic overexposure may

lead to central nervous system effects.

IMMEDIATE EFFECTS: ............ Irritation or burns to eyes, skin, or other tissues.

CHRONIC EFFECTS: ................. Skin, eye, or respiratory irritation or allergy symptoms. Note above entry for delayed effects.

Safety Data Sheet

NUMERICAL MEASURES OF TOXICITY:.............. No toxicology available on the formulated product. Toxicology data for

several product ingredients:

INGREDIENTS DATA

Zinc Sulfate

Manganese Sulfate (as elemental manganese)

Boric Aicd

Oral rat LD50, 2949 mg / kg

Oral rat LD50, 9000 mg / kg

Oral rat LD50, 3500 - 4100 mg / kg

12 – ECOLOGICAL INFORMATION

ENVIRONMENTAL FATE AND DISTRIBUTION: Significant contamination of small bodies of surface water or

localized areas at the point of a spill may depress pH levels below tolerable levels for aquatic organisms. Product contains less than

1% of several ingredients that are toxic to fish and other aquatic organism. Product contains boric acid. The boric acid ingredient

(together with other ingredients) may damage plant life if concentrated product is dumped in the environment.

PRODUCT DATA

Zinc Sulfate

Boric Acid

(as elemental boron)

Unspecified fish 96 hour LC50 1-10 mg/I

Rainbow trout 24 dat LC50 150 mg/I as elemental boron

Daphnia magna straus 48 hour LC50 133 mg/I

PERSISTENCE AND DEGRADABILITY: ................. Product is a mixture of macronutrients and micronutrients. Product will

not be persistent in the environment.

BIOACCUMULATIVE POTENTIAL: ........................ Product ingredients do not bioaccumulate.

MOBILITY IN SOIL: .................. Not known.

OTHER ADVERSE EFFECTS: .. Not known.

13 –DISPOSAL CONSIDERATIONS

WASTE DISPOSAL: .................... Product is consumed during recommended use. Flush container residues to the treated system.

If product is not consumed in use, material is RCRA hazardous waste due to the corrosivity

characteristic (D002). Dispose of contents or container in accordance with local, state, and

federal regulations.

Safety Data Sheet

14 – TRANSPORTATION INFORMATION

PROPER SHIPPING NAME: ..... Corrosive liquid, acidic, inorganic, n.o.s. (contains zinc sulfate and manganese sulfate)

HAZARD CLASS: ........................ 8

UN/NA NUMBER: ........................ UN3264

ENVIRONMENTAL HAZARDS:................................. Does not contain ingredient(s) listed as marine pollutant.

PACKAGING GROUP: ............... PG III

TRANSPORT IN BULK: ............. Product container meets or exceeds DOT requirements. Product is shipped to end user. No

extraordinary measures are required for shipment in bulk tanks including totes. See 49 CFR

172.101 & 49 CFR172.102.

SPECIAL PRECAUTIONS: ........ If needed, see associated designations at 49 CFR172.102 for detailed descriptions of current

container specifications.

15 - REGULATIONS

Contents of this MSDS comply with the OSHA Hazard Communication Standard 29CFR 1910.1200

EPA SRA Title III Chemical Listings:

TSCA STATUS: All ingredients listed or exempt.

SECTION 312: Acute Hazard.

SARA SECTION 313: Not listed.

US EPA CERCLA: Product contains 1-5% zinc sulfate. The CERLA RQ for zinc sulfate is 1,000 pounds.

16 – OTHER INFORMATION

NFPA HAZARD RANKING

HEALTH FIRE REACTIVITY SPECIAL

3 0 0 CORR

HMIS HAZARD RANKING

HEALTH FIRE REACTIVITY PPE

3 0 0 n & p or X (defined below)

This data is offered in good faith and believed to be accurate, but it is for the users to satify themselves of the product suitability

for their own purpose. There is no warrenty expressed or implied. The recommended hygiene and safe handling procedures are

believed to be generally applicable.