Chemicals.xlsx
XLSX spreadsheet 10 KB Posted
- Solicitation number
- 107587
- Issued by
- Prince George's County, Maryland
About this file
This is a chemicals specification document related to water treatment services for the Washington Suburban Sanitary Commission (WSSC) in Maryland. The file contains detailed chemical requirements for HVAC and biosolids treatment systems across eleven WSSC facilities. The contractor must provide comprehensive water treatment services including all necessary chemicals, supervision, labor, equipment, materials, and tools to maintain proper operating conditions across the designated systems. Sealed responses must be submitted via WSSC's eProcurement Portal at https://procurement.opengov.com/portal/wsscwater no later than 2:00 pm on Monday, August 3, 2026, with late submissions not accepted. The scope encompasses both mechanical and water systems requiring specialized chemical treatment to meet operational and regulatory standards.
The chemicals specification document outlines the specific chemical products, formulations, and quantities required for the contract performance. These specifications establish the baseline requirements and standards that bidding contractors must meet or exceed in their proposals. The document serves as a critical reference for contractors to understand the technical requirements and chemical treatment protocols necessary to successfully perform water treatment services at all eleven WSSC locations, ensuring compliance with applicable water quality and system maintenance standards.
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Text version
Chemicals
| 1. Closed System Nitrite Program | |
| PH | 9-10 |
| Nitrite | 500 - 1000 ppm |
| 2. Closed System Sulfite Program | |
| pH | 9-10 |
| Sulfite | I 80 ppm |
| TDS | 3500 max |
| 3. Steam Boiler Program | |
| pH | 9-11 ppm |
| Sulfite | 30-60 ppm |
| P Alkalinity | 300-400 ppm |
| M Alkalinity | 400-600 ppm |
| Phosphate | 30-60 ppm |
| Iron | <1 ppm |
| TDS | 2500-3000 ppm |
| 4. Cooling Tower Program | |
| pH | 8-9 |
| Phosponates (PBTC) | 3-6 ppm (if used) |
| T Alkalinity | 400 ppm max |
| Conductivity | 1000-1400 mm |
| Chlorides | 80-190 ppm |
| Total Hardness | 600 ppm max |
| Molybdenum | 0.8-1.2 ppm (if used) |
| 5. Glycol Program | |
| pH | 8.5-10.5 |
| Freezing Point | 0 Degrees |
| 6. Water Softners | |
| pH | 7-9 |
| Total Hardness | 0-50 ppm |
| 7. Low-pressure Steam Biolers (Piscataway Biosolids, non-HVAC) | |
| pH | 9-11 |
| Phosponates (PBTC) | 10-50 ppm |
| P Alkalinity | 30-500 ppm |
| M Alkalinity | 400-600 ppm |
| Nitrite | 500-2000 ppm |
| Chlorides | 100-130 ppm |
| Total Hardness | 0 |
| Hydrazine | 0.05-0.10 ppm |
| Sulfite | 30-60 ppm |
| Chromate | 500-1500 ppm |
| Phosphorus | 200-900 ppm |
| Phosphate | 60 ppm |
| Steam Condensate PH | 8-10 |
File details come from the government source that posted it. Updated .