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Findings and Recommendations
8 findings
Untreated water is taken from Little Deer Creek and supplemented by up to 30 acre feet of water from Nevada Irrigation District's Cascade Canal.
No recommendations for this finding
Average treated water usage during the winter and summer periods is 0.5 and 1.2 million gallons per day respectively. Treatment capacity could be as much as 2 million gallons per day. Any increase in present usage is limited by filter capacity and would require either more filtering capacity or staffing of more than one shift per day.
No recommendations for this finding
A well-maintained emergency power system is in place. Storage capacity of treated water is ample, with one 1.4-million gallon tank, a second 640,000 gallon tank, and a third 1.1- million gallon tank.
No recommendations for this finding
Treated water samples are analyzed on a fixed schedule for pH, turbidity, aluminum and residual chlorine. Organics and bacterial analyses are contracted to an outside laboratory. All of the analyzed compounds are well below the levels set by the California Department of Health Services. Monthly reports are sent to the state and the state inspects the plant twice a year.
No recommendations for this finding
Potable water plant operators and wastewater plant operators are state certified in both disciplines and can operate either plant.
No recommendations for this finding
The water treatment plant is in spotless condition and all electrical and mechanical equipment is kept in excellent condition.
No recommendations for this finding
The plant operates automatically except for backwashing the filters and thus there is no need at the present time for staffing the second and third shifts. Any equipment failures on un- staffed shifts are automatically alarmed and an operator responds.
No recommendations for this finding
The plant is surrounded by a 6-foot high chain link fence that the Grand Jury deems inadequate to protect against vandalism that has occurred at other county water treatment plants. One of the two sets of gates has an opening large enough to admit a small person. There is no alarm system to detect intruders CONCLUSION The Nevada City water treatment plant is well-operated and maintained and water supply is ample.
No recommendations for this finding
No Responses Found
1
Government entities assigned to respond to this report. No response documents have been linked in our database.
