|
Download Excel NPDES Self Monitoring Program
City of Placerville, Hangtown Creek Water Reclamation Facility
|
Organization
City of Placervilleshow partners CVRWQCB
Program website
view
Plan contactDan Yaroch
530-642-5244
|
| Start date | 04/25/2008 |
| End date | None |
| Objectives | The Discharger owns and operates a municipal wastewater treatment system that provides sewerage service for a population of approximately 10,335 in the community of Placerville and a small portion of El Dorado County. The existing treatment system consists of primary, secondary, and tertiary treatment processess. The wastewater treatment facilities include headworks, primary clarifiers, flow equalization, an anoxic selector, aeration basins, secondary clarifiers, ballast ponds, tertiary pressure filters, chlorination, dechlorination with sulfur dioxide, and addition of defoamant.
In 2004, a new rotary screw screen was installed to replace the mechanically cleaned bar screen at the headworks. The addition of sodium hydroxide to the effluent of the primary clarifiers was initiated to provide the alkalinity necessary for nitrification. The addition of sodium hydroxide to the effluent from the secondary clarifiers was also initiated to assist with compliance with effluent and receiving water pH limitations.
The solids processing facilities include aerobic digesters for waste activated sludge and anaerobic digesters for primary sludge. Digested sludge is dewatered with a belt filter press and disposed off-site at a permitted land disposal facility or by application to agricultural land. The Discharger has begun construction on treatment system improvements. The new treatment systems is scheduled to begin discharge by March 1, 2009 and will include upgraded primary, secondary, and tertiary treatment processes, effluent cooling, and anaerobic digesters for processing waste activated sludge.
Wastewater is discharged from Discharge Point 001 to Hangtown Creek, a water of the United States, and tributary to Weber Creek, which then flows into the South Fork American River (between Placerville and Folsom Lake), Folsom Lake, the Sacramento River, and eventually the Delta. |
| Annual budget | None |
|
Basins & sub-basins monitored
- Sacramento River (Sacramento River)
|
|
|
|
|
map
|
Sites Monitored
| Name |
Code |
Latitude |
Longitude |
Map |
|
Hangtown Creek, 100 ft US from the pt of discharge
|
RSW-001 |
38.732035 |
-120.842329 |
locate |
|
Hangtown Creek, 100 ft DS from the pt of discharge
|
RSW-002 |
38.731471 |
-120.845522 |
locate |
|
Parameters Monitored
| Group | Parameters | Frequency |
|---|
| General Water Quality |
Dissolved Oxygen (DO), Hardness, pH, Specific Conductance [EC @ 25 deg C], Temperature, Turbidity |
Biweekly, Monthly, Seasonally |
| Hydrology |
Flow |
Continuous, Daily |
| Pathogens & Bacteria |
Fecal Coliforms |
Quarterly |
| Priority Pollutants |
Priority Pollutants |
Other |
| Radioactivity |
Radionuclides |
Annual |
| Water Toxicity |
Toxicity (chronic) - Ceriodaphnia, Toxicity (chronic) - Fathead minnow, Toxicity (chronic) - other |
Quarterly |
|
Data Products Available
|