BL097-22 ADD2

BL097-22

Addendum #2

September 15, 2022

ADDENDUM #2

BL097-22, Purchase of Water Treatment and Water Reclamation Chemicals on an Annual Contract

This Addendum is being issued to provide the following revisions and/or clarifications to the bid documents and answers to the questions received.

Make the following changes to the above referenced bid:

Revisions:

1. Please replace and use the attached revised compliance sheets for chemical #6, Liquid Calcium Hydroxide.

Item #6 will now be #6A. 30% Liquid Calcium Hydroxide - Lime Slurry and #6B. 35% Liquid Calcium Hydroxide

- Lime Slurry.

2. Please replace and use the attached revised compliance sheet for chemical #18, Magnesium Chloride (30% solution).

3. Please replace and use the Revised Bid Schedule attached. This includes the revision made to include #6A and #6B.

4. Please revise the answer for question #2 on Addendum #1 to the following:

The County intends to rebid calcium nitrate in the near future. Interested bidders should monitor the Gwinnett County Website for any upcoming solicitations.

Questions:

Q1. What sizes are the liquid oxygen tanks?

A1. The tank sizes are as follows: Lanier Filter Plant – One (700) gal, F. Wayne Hill – Two (13,000) gal, and

Shoal Creek – Two (12,800) gal.

Q2. What sizes are the liquid nitrogen tanks?

A2. The tank sizes are as follows: Lanier Filter Plant – One (13,000) gal and Shoal Creek – One (175) gal.

Q3. Please provide the current price paid for each chemical if price is different than the previous tabulations.

A3. Please see Bid Tabulations issued in Addendum #1.

Q4. Could you please send me the SDS for the Brenntag product citric acid that you are currently receiving?

A4. Please see the attached SDS for the current product citric acid being utilized.

Q5. Could you also advise what application this Citric Acid product is being used for?

A5. Gwinnett County is currently using bulk loads of Citric Acid to clean the Suez 500D membranes as well as using totes of Citric Acid to acid wash the struvite from the piping at Ostara (Nutrient Recovery).

Q6. Please provide the actual quantity of each chemical ordered in the last year.

A6. Please see the quantity chart provided below for the current contract term.

Chemical Quantity

Liquid Sodium Hydroxide (Caustic Soda) 161,139 Gallon

Calcium Hypochlorite (dry) 120 100 Pound Bucket

Chlorine (Liquid) 297 Ton

Phosphate Corrosion Inhibitor 46,023 Gallon

Fluorosilicic Acid 40,508 Gallon

Liquid Calcium Hydroxide (Lime Slurry) 57,185 100 Wet Pounds

Liquid Ferric Sulfate 43 275 Gallon Tote

Liquid Ferric Chloride (bulk) 19,272 Gallons

Liquid Oxygen (LOX) 716,564 100 Cubic Feet

Liquid Nitrogen 12,069 Liters

Calcium Oxide (Quicklime) 1,284 Ton

Sodium Hypochlorite (bulk liquid 12.5%) 224,581 Gallon

Sodium Hypochlorite (tote liquid 12.5%) 15 275 Gallon Tote

Citric Acid Based Cleaner (bulk) 73,462 Gallon

Citric Acid Based Cleaner (tote) 11 275 Gallon Tote

Hydrochloric Acid (32%) 9 275 Gallon Tote

Oxalic Acid Solution (bulk) 0 Gallon

Oxalic Acid Solution (tote) 0 275 Gallon Tote

Sodium Aluminate 0 330 Gallon Tote

Magnesium Chloride 0 Gallon

Q7. Can addendum be acknowledged via email, or does it have to be mailed in?

A7. An addendum can be acknowledged via email, only if there is no pricing included.

All bidders shall acknowledge receipt of this addendum by inserting its number and date in the Bid Form. Failure to do so may subject bidder to disqualification. This addendum forms a part of the Contract Documents.

Thank you, Brittany Bryant Brittany Bryant Purchasing Associate II

FAILURE TO RETURN THIS PAGE AS PART OF YOUR MAY RESULT IN REJECTION OF YOUR BID.

COMPLIANCE SHEETS

6A. 30% Liquid Calcium Hydroxide - Lime Slurry Comply Exception 1 Standards and Certifications

1.1 Meet AWWA B202-13 or latest revision if newer AWWA standard has been published.

1.2 Meet NSF-60. Submit proof of NSF certification.

1.3 Provide certification following AWWA B202-13 Section 4.3.2 (or latest revision if newer AWWA standard has been published).

2 Delivery Locations and Projected Annual Quantities

2.1 Crooked Creek WRF 50,000 units of 100 pounds

2.1 F. Wayne Hill WRC 165,000 units of 100 pounds

2.3 Shoal Creek FP 32,000 units of 100 pounds

2.4 Lanier FP 49,000 units of 100 pounds

3 Material Specifications

3.1

Provide 30% stabilized aqueous Calcium Hydroxide suspension, microparticulated under high rotary fusion. Use no quicklime in the slurry manufacturing process. Use only finely ground air-classified hydrated lime for preparation of the slurry.

3.2

Meet the following product specifications: Percent Passing 100 Mesh Screen (99.9%), CaOH by weight (30%), Maximum Inert Ingredients (70%), Appearance (liquid, white suspension), Odor (none), Solubility in Water (0.1 g/100g), Specific Gravity (1.19-1.23), pH of Saturated Solution at 25 degrees Celsius (12.4).

3.3 Meet requirements of AWWA B202-13 Section 4.3 (or latest revision if newer AWWA standard has been published) for impurities.

4 Supplier Requirements

4.1 Ship in bulk by truck by manufacturer’s tanker or a certified food grade carrier.

4.2 After order placement, product to be delivered within 72 hours or a mutually agreed to delivery schedule.

4.3

Upon delivery, dilute product to 22 percent CaOH by weight. Follow GCDWR guidelines provided by plant operators and use the Lime Dilution Table to determine volume of water needed to reach a 22 percent slurry. All deliveries require an inline hose basket strainer between tanker and bulk tank.

4.4 Maintain on-site tank and feed system from the tank to the feed pump to ensure no blockage. If visible build-up occurs in tank, tank mixing system or feed lines, clean these systems to restore proper operations.

Supplier Name ____________________________________________________________________________

6A. 30% Liquid Calcium Hydroxide - Lime Slurry (continued) Comply Exception

4.5

For safety and security purposes send an email 24 hours before delivery to Plant Manager and Operations Supervisor at the delivery location (Contacts will be provided in the request for delivery). Include driver's name, copy of driver's license, tanker port seal #s and Bill of Lading for verification upon delivery. Drivers are required to wear appropriate Personal Protective Equipment during offloading procedures.

4.6 Comply with USDOT FMCSA Regulations for transport of hazardous materials.

4.7 Bid as U.S. dollars per pound of liquid, rounded up to two (2) decimal places.

If unit price bid exceeds two (2) decimal places, the bid amount will be truncated (not rounded) to two (2) decimal places.

4.8 Submit certified analysis including Percent Passing 100 Mesh Screen, CaOH Content by Weight, Inert Ingredients Content by Weight, Solubility in Water, Specific Gravity, and pH of Saturated Solution at 25 Degrees Celsius.

4.9 Certify that the manufacturing process meets 3.1 above.

4.10 Allow product manufacturing plant visits by GCDWR staff for the purpose of verification of the manufacturing process and inspection of plant hygiene.

4.11 Deliver in a vehicle no longer than 54 feet from frontmost wheel center to rearmost wheel center.

5 Testing, Verification & Payment

5.1 Payment will be for units of 100 pounds of liquid received at each location.

5.2 Review of certified analysis (see 4.8 above) by GCDWR.

5.3 Review of certification required in 4.9 above.

5.4 GCDWR may conduct additional sieve analysis and other analyses and may conduct manufacturing plant visits at its discretion.

5.5 Trucks will be weighed upon arrival and after offloading, to verify the total pounds of product delivered.

6B. 35% Liquid Calcium Hydroxide - Lime Slurry Comply Exception

None specified.

2 Delivery Locations and Projected Annual Quantities

2.1 Crooked Creek WRF 43,000 units of 100 pounds

2.2 F Wayne Hill WRC 142,000 units of 100 pounds

3 Material Specifications

3.1 Provide 35% stabilized aqueous Calcium Hydroxide suspension.

3.2

Meet the following product specifications:

- Calcium Hydroxide Concentration 34% to 36%

- Magnesium Oxide Concentration less than 3.0%

- Silica less than 2.0%

- Water balance

- pH 12.4 to 12.5

- Specific Gravity 1.20 to 1.27

- Solubility 1.6 g/L @ 25 degrees C

4 Supplier Requirements

4.1 Ship in bulk by truck by manufacturer’s tanker or a certified food grade carrier.

4.2 After order placement, product to be delivered within 72 hours or a mutually agreed to delivery schedule.

4.3

For safety and security purposes send an email 24 hours before delivery to Plant Manager and Operations Supervisor at the delivery location (Contacts will be provided in the request for delivery). Include driver's name, copy of driver's license, tanker port seal #s and Bill of Lading for verification upon delivery. Drivers are required to wear appropriate Personal Protective Equipment during offloading procedures.

4.4 Comply with all federal, state, and local regulations associated with the transportation of this chemical.

4.5 Bid as U.S. dollars per pound of liquid, rounded up to two (2) decimal places.

If unit price bid exceeds two (2) decimal places, the bid amount will be truncated (not rounded) to two (2) decimal places.

4.6 Submit certified analysis after each order is placed. Certified analysis shall include at a minimum all parameters included in section 3.2.

4.7 Allow product manufacturing plant visits by GCDWR staff for the inspection of plant hygiene.

4.8 Deliver in a vehicle no longer than 54 feet from frontmost wheel center to rearmost wheel center.

5 Testing, Verification & Payment

5.1 Payment will be for units of 100 pounds of liquid received at each location.

5.2 Review of certified analysis (see 4.6 above) by GCDWR.

5.3 GCDWR may conduct additional analyses and may conduct manufacturing plant visits at its discretion.

5.4 Trucks will be weighed upon arrival and after offloading, to verify the total pounds of product delivered.

18. Magnesium Chloride (30% solution)

1.1 None specified.

2 Delivery Locations and Projected Annual Quantities

2.1 F. Wayne Hill WRC 50,000 gallons

3 Material Specifications

3.1

30% to 32% Magnesium Chloride

Less than 0.40% Magnesium

Less than 0.65% Potassium Chloride

Less than 0.70% Sodium Chloride

Less than 0.10% Calcium Chloride

Less than 0.50% Bromide

Less than 10 mg/kg Iron

Less than 0.1% Insoluble Material

Specific Gravity: 1.29 +/- 0.02 pH (of 5% solution): 7.0 to 9.0

Bulk Density: 10.6 lb./gal to 10.9 lb./gal

4 Vendor Requirements

4.1 Ship by truck in bulk containers rated for this product.

4.2 After order placement, product to be delivered within 72 hours or a mutually agreed to delivery schedule.

4.3

Bid as U.S. dollars per gallon, rounded to two (2) decimal places. If unit price bid exceeds two (2) decimal places, the bid amount will be truncated (not rounded) to two (2) decimal places.

4.4 Submit certified analysis including MgCl2 content.

5 Testing, Verification & Payment

5.1 Payment will be for gallons of product received at each location.

5.2 Review of certified analysis (see 4.4 above) by GCDWR.

R30

BID SCHEDULE

Item # Product Description Approx. Annual Qty. Unit Price Total

Renewal Option 1

Renewal Option 2

Liquid Sodium Hydroxide - Caustic Soda

Bulk Solution 340,500 Gal $ /gal $ % %

2 Calcium Hypochlorite - dry Dry Product in 100 Pound Buckets

100 Lbs.

Bucket

$ /bucket $ % %

3 Chlorine - Liquid Liquid in Standard DOT One Ton Containers

450 Ton $ /ton $ % %

Phosphate Corrosion Inhibitor

Bulk Solution 110,000 Gal $ /gal $ % %

5 Fluorosilicic Acid Bulk Solution 76,000 Gal $ /gal $ % %

6A 30% Liquid Calcium Hydroxide - Lime Slurry

Bulk Slurry 296,000 100 Wet Lbs. $ /lb. $ % %

6B 35% Liquid Calcium Hydroxide - Lime Slurry

Bulk Slurry 185,000 100 Wet Lbs. $ /lb. $ % %

7 Liquid Ferric Sulfate Solution in 275 Gallon Totes

100 275-Gal Tote $ /tote $ % %

8 Liquid Ferric Chloride - bulk Bulk Solution 33,000 Gal $ /gal $ % %

9 Liquid Oxygen – LOX Bulk Liquid 1,130,000 100 Cubic Ft $ /cubic ft $ % %

9a Non-Emergency Labor Equipment Maintenance

Per Person, Business Hours (7am-4pm, M-F)

16 Hr $ /Hr $ % %

9b Non-Emergency Labor Equipment Maintenance

Per Person, Non-Business Hours

16 Hr $ /Hr $ % %

9c Emergency Labor Equipment Maintenance

Per Person, Business Hours (7am-4pm, M-F)

16 Hr $ /Hr $ % %

9d Emergency Labor Equipment Maintenance

Per Person, Non-Business Hours

16 Hr $ /Hr $ % %

10 Liquid Nitrogen Bulk Liquid 27,000 L $ /L $ % %

10a Non-Emergency Labor Equipment Maintenance

Per Person, Business Hours (7am-4pm, M-F)

16 Hr $ /Hr $ % %

10b Non-Emergency Labor Equipment Maintenance

Per Person, Non-Business Hours

16 Hr $ /Hr $ % %

SUPPLIER NAME _________________________________________________________________________________________

R31

BID SCHEDULE CONTINUED

Item # Product Description Approx. Annual Qty. Unit Price Total

Renewal Option 1

Renewal Option 2

10c Emergency Labor Equipment Maintenance

Per Person, Business Hours (7am-4pm, M-F)

16 Hr $ /Hr $ % %

10e Emergency Labor Equipment Maintenance

Per Person, Non- Business Hours

16 Hr $ /Hr $ % %

10f Parts, Material and Equipment, Percentage Charge Above Cost (Not to Exceed 15% of Actual Costs)

$15,000.00 % $ % %

11 Calcium Oxide - Quicklime Bulk Dry Product 1,800 Ton $ /Ton $ % %

Aluminum Sulfate - Liquid Alum

Bulk Solution 1,585,000 Gal $ /Gal $ %

13A Sodium Hypochlorite - bulk liquid 12.5%

Bulk Solution 321,000 Gal $ /Gal $ %

13B Sodium Hypochlorite - tote liquid 12.5%

Solution in 275 Gallon Totes

15 275-Gal Tote $ /Tote $ %

14A Citric Acid Based Cleaner -bulk

Bulk Solution 112,000 Gal $ /Gal $ %

14B Citric Acid Based Cleaner – tote

Solution in 275 Gallon Totes

10 275-Gal Tote $ /Tote $ %

15 Hydrochloric Acid - 32% Solution in 275 Gallon Totes

19 275-Gal Tote $ /Tote $ %

16A Oxalic Acid Solution, bulk Bulk Solution 20,000 Gal $ /Gal $ % %

16B Oxalic Acid Solution, tote Solution in 275 Gallon Totes

70 275-Gal Tote $ /Tote $ %

17 Sodium Aluminate Solution in 330 Gallon Totes

10 330-Gal Tote $ /Tote $ %

18 Magnesium Chloride Bulk Solution 50,000 Gal $ /Gal $ % %

BID TOTAL $

NOTE:

** If a percentage increase/decrease will be needed for the renewal period(s), note this in the space provided. Please use (+) for increase and (-) for decrease. Use a realistic percentage or percentage range based on market forecasting. Gwinnett County can only negotiate within the range indicated on the bid document. (Example, if a supplier indicates 3-15% and the market increases 20%, the supplier will only be allowed to increase up to15%). If the increase will apply only to certain line items, please specify in the space provided.

SUPPLIER NAME _________________________________________________________________________________________