Specifications include, but are not limited to: Sodium Hypochlorite (wt %) Minimum Typical Maximum 12.5 14.0 15.6 Excess Sodium Hydroxide Weight Percent 0.1 0.6 2.0 Grams/Liter 1.2 7.7 25.0 Available Chlorine Weight Percent 11.9 13.3 14.8 Trade (Volume) Percent 14.2 16.1 18.5 Grams/Liter 142 161.4 185 Specific Gravity @ 680F (200C) 1.196 1.211 1.249 Weight of Solution @ 680F (200C) 10.0 10.1 10.4 Inert Ingredients Maximum Sodium Carbonate Na2CO3 0.5% wt Sodium Chloride NaCl 12.5% wt Inorganic Salts Typical Maximum Copper Cu 0.7 mg/L 0.5% wt Iron Fe 2.0 mg/L 0.5% wt Nickel Ni <1.0 mg/L 3.0 ppm Manganese Mn 0.1 mg/L 1.0 ppm Silicon Si 100 ppm Approximate usage is 35,000 gallons per year. Minimum delivery is 3,000 gallons. There are two hypochlorite delivery locations at the facility, the Chlorine Building and the Septage receiving building. Sodium hypochlorite deliveries to be weighed in and out on Merrimack Wastewater Facility scale for billing purposes Delivery hours between 7am and 12 pm Monday through Friday, early morning preferred. Deliveries must be made within 48 hours. Supplier shall provide an SDS (Safety Data Sheet) that meets the UN Global Harmonization System (GHS) on the first delivery Bid period is July 1, 2023 through June 30, 2024. Sodium Bisulfite (38% solution) Sodium Bisulfite shall be supplied as an aqueous solution having a concentration of 38% (+/- 2%). Regular analysis shall be performed on the product to maintain quality control and assure that the product delivered to the Town shall remain within the following ranges: Iron (as Fe) < 5 ppm Heavy Metals (as Pb) < 5 ppm Specific Gravity @ 70° F 1.331 – 1.375 ph @ 1% solution @ 70° F not less than 3.0 nor greater than 8.0 NaHSO3 between 36.0% - 42.0% Approximate usage is 11,000 lbs per year or 1000 gals. As an overriding factor, regardless of any specification stated herein, the product shall not contain compounds or elements or minerals in such concentrations as to cause or contribute to an effluent limitation in the facilities permit to be exceeded. The supplier shall initially, and as requested by the town, provide analysis and documentation of all trace metals and compounds that exist in the Sodium Bisulfite solution. The supplier shall also indicate typical pH of the solution. Product being delivered to the facility having a concentration of less than 36% or greater than 45% solution, by weight, of Sodium Bisulfite shall be considered unacceptable and not in conformance with the terms of the contract. In no case shall product in excess of 45% solution, by weight, of anhydrous Sodium Bisulfite be delivered to the facility. Product not meeting the specifications as outlined in this document, if known at the time of delivery, is cause for rejection. Supplier shall provide an SDS (Safety Data Sheet) that meets the requirements of the UN Global Harmonization System (GHS) on the first delivery. Bisulfite deliveries by tanker truck must to be weighed in and out at the Merrimack Wastewater Treatment Facilities’ scale. Tote transfer deliveries are acceptable and are exempt from weighing in. Delivery hours between 7am and 12pm Monday through Friday, early morning preferred. Deliveries must be made within 48 hours from date of order. Bid period is July 1, 2023 -June 30, 2024
