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Calaveras County Water District

Sewage treatment plant, Murphys, California. NPDES permit CA0085278, in force until Jan 31, 2030. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 32 days after each period: outfall EFF1 form A monthly (30 values), outfall INF1 form A monthly (8 values)
Last report on file
August 2026
Oct 2024 – Sep 2025
0 values over a limit, 114 required values missing, 6 of 25 reports late

Limits in force (38)

ParameterStatisticLimitMonthsOutfall
Temperature, water deg. fahrenheitinstantaneous maximumreport only (deg F)all yearEFF1
Specific conductancedaily maximumreport only (umho/cm)all yearEFF1
Oxygen, dissolved [DO]monthly averagereport only (mg/L)all yearEFF1
Oxygen, dissolved [DO]daily maximumreport only (mg/L)all yearEFF1
BOD, 5-day, 20 deg. Cmonthly average≤ 10 mg/Lall yearEFF1
BOD, 5-day, 20 deg. Cweekly average≤ 15 mg/Lall yearEFF1
pHinstantaneous minimum≥ 6.5 SUall yearEFF1
pHinstantaneous maximum≤ 8.5 SUall yearEFF1
Solids, total suspendedmonthly average≤ 10 mg/Lall yearEFF1
Solids, total suspendedweekly average≤ 15 mg/Lall yearEFF1
Nitrogen, ammonia total [as N]monthly average≤ 28 mg/Lall yearEFF1
Nitrogen, ammonia total [as N]weekly average≤ 64 mg/Lall yearEFF1
Nitrogen, ammonia total [as N]monthly average≤ 200 lb/dall yearEFF1
Nitrogen, ammonia total [as N]weekly average≤ 450 lb/dall yearEFF1
Nitrite + Nitrate total [as N]monthly average≤ 40 mg/Lall yearEFF1
Nitrite + Nitrate total [as N]weekly average≤ 84 mg/Lall yearEFF1
Hardness, total [as CaCO3]daily maximumreport only (mg/L)all yearEFF1
Copper, total [as Cu]monthly average≤ 9.2 ug/Lall yearEFF1
Copper, total [as Cu]daily maximum≤ 18 ug/Lall yearEFF1
Zinc, total [as Zn]monthly average≤ 100 ug/Lall yearEFF1
Zinc, total [as Zn]daily maximum≤ 210 ug/Lall yearEFF1
Chlorine, total residualmonthly averagereport only (mg/L)all yearEFF1
Chlorine, total residualdaily maximumreport only (mg/L)all yearEFF1
Coliform, total generalinstantaneous maximum≤ 240 MPN/100mLall yearEFF1
Coliform, total general7-day median≤ 2.2 MPN/100mLall yearEFF1
Coliform, total general30-day maximum≤ 23 MPN/100mLall yearEFF1
Flowmonthly averagereport only (MGD)all yearEFF1
Flowdaily maximumreport only (MGD)all yearEFF1
BOD, 5-day, percent removalmonthly average minimum≥ 85 %all yearEFF1
Solids, suspended percent removalmonthly average minimum≥ 85 %all yearEFF1
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all yearINF1
BOD, 5-day, 20 deg. Cdaily maximumreport only (mg/L)all yearINF1
pHinstantaneous minimumreport only (SU)all yearINF1
pHinstantaneous maximumreport only (SU)all yearINF1
Solids, total suspendedmonthly averagereport only (mg/L)all yearINF1
Solids, total suspendeddaily maximumreport only (mg/L)all yearINF1
Flowmonthly averagereport only (MGD)all yearINF1
Flowdaily maximumreport only (MGD)all yearINF1

How strict are these limits?

Cited limits by parameter: California's rules and the federal ones.

Check this month's numbers Email me before each report is due

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/CA0085278 · MCP: https://passage-data.com/mcp