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Download Excel NPDES Self Monitoring Program
Ironhouse Sanitary District Wastewater Treatment Plant, Contra Costa County
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Organization
Ironhouse Sanitation Districtshow partners CVRWQCB
Program website
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Plan contactJennifer Skrel
925-625-2279
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| Start date | 04/25/2008 |
| End date | None |
| Objectives | The Ironhouse Sanitary District (hereinafter Discharger) owns and operates the Ironhouse Sanitary District Wastewater Treatment Plant (WWTP) and provides sewerage service for the communities of Oakley, Bethel Island and unicorporated areas in between. The current WWTP consists of headworks, aerated ponds, and two effluent storage ponds. The Discharger disposes of disinfected secondary treated wastewater through irrigation of agricultural lands for production of hay and pastureland for grazing cattle. The effluent is dosed with sodium hypochlorite for disinfection prior to discharge to the irrigation fields. The current average dry weather flow (ADWF) is 2.64 mgd and the treatment ADWF capacity is 2.7 mgd. The current Order (Order No. R5-2008-0057) addresses the Dischargers request for authorization to discharge up to 4.3 mgd, ADWF, of treated wastewater , from a new WWTP to be constructed, to the San Joaquin River, within the Sacramento-San Joaquin Delta (Delta). The Discharger has designed the new WWTP (hereinafter Facility) to produce tertiary treated effluent with ultraviolet (UV) light disinfection and have a capacity of 4.3 mgd ADWF. The effluent from this Facility will be discharged in accordance with this Order through a new dedicated pipeline that will convey effluent to the San Joaquin River of of Jersey Island. The Discharger would continue to maximize land disposal and water reclamation with tertiary, nitrified and denitrified effluent. The Discharger expects to begin construction of the new facility in August 2008 with funding from the State Revolving Fund loan program. This Order will only regulate surface water discharges to the San Joaquin River. The regulation of the wastewater treatment plant, storage and land disposal of wastewater effluent is provided by separate Waste Discharge Requirements (WDR) Order No. 5-01-237 or subsequent Waste Discharge Requirements. As of December 2008, construction of the new facility had not begun and the existing WWTP continues to discharge to land in accordance with the applicable WDR. |
| Annual budget | None |
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Basins & sub-basins monitored
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map
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Sites Monitored
| Name |
Code |
Latitude |
Longitude |
Map |
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San Joaquin River, 500 ft US from discharge 001
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RSW-002 |
38.045285 |
-121.692129 |
locate |
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San Joaquin River, 500 ft DS from discharge 001
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RSW-003 |
38.042403 |
-121.694011 |
locate |
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Parameters Monitored
| Group | Parameters | Frequency |
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| General Water Quality |
Dissolved Oxygen (DO), Electrical Conductivity (EC) , pH, Temperature, Total Dissolved Solids (TDS), Turbidity |
Monthly |
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Data Products Available
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