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Peninsula Community Services District and Samoa Pacific Group

Sewage treatment plant, Samoa, California. NPDES permit CA1000001 expired May 31, 2025; its limits still apply. Last 12 months: over a limit 5 times (last December 2025), 258 required values missing, 12 of 21 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 32 days after each period: outfall 001 form A monthly (26 values), outfall INF form A monthly (5 values)
Last report on file
June 2026
Oct 2024 – Sep 2025
2 values over a limit, 222 required values missing, 19 of 31 reports late

Last 12 months (Oct 1, 2025 – Sep 30, 2026)

Period endingParameterReportedLimitOver by
October 2025BOD, 5-day, percent removal, monthly average minimum3 %≥ 85 %547%
October 2025BOD, 5-day, percent removal, monthly average minimum3 %≥ 85 %547%
December 2025BOD, 5-day, 20 deg. C, monthly average45.14 mg/L≤ 30 mg/L50%
December 2025BOD, 5-day, 20 deg. C, weekly average200 mg/L≤ 45 mg/L344%
December 2025Solids, settleable, instantaneous maximum4.5 mL/L≤ 3 mL/L50%

Limits in force (31)

ParameterStatisticLimitMonthsOutfall
Temperature, water deg. fahrenheitinstantaneous maximumreport only (deg F)all year001
Turbiditymonthly average≤ 75 NTUall year001
Turbidityweekly average≤ 100 NTUall year001
Turbidityinstantaneous maximum≤ 225 NTUall year001
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall year001
BOD, 5-day, 20 deg. Cweekly average≤ 45 mg/Lall year001
pHminimum≥ 6 SUall year001
pHmaximum≤ 9 SUall year001
Solids, total suspendedmonthly average≤ 30 mg/Lall year001
Solids, total suspendedweekly average≤ 45 mg/Lall year001
Solids, settleablemonthly average≤ 1 mL/Lall year001
Solids, settleableweekly average≤ 1.5 mL/Lall year001
Solids, settleableinstantaneous maximum≤ 3 mL/Lall year001
Oil & Greasemonthly average≤ 25 mg/Lall year001
Oil & Greaseweekly average≤ 40 mg/Lall year001
Oil & Greaseinstantaneous maximum≤ 75 mg/Lall year001
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)all year001
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year001
Flow, in conduit or thru treatment plantdaily averagereport only (MGD)all year001
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year001
Enterococcigeometric mean≤ 30 CFU/100mLall year001
Enterococci90% of samples≤ 110 CFU/100mLall year001
Coliform, total generalmonthly median≤ 70 MPN/100mLall year001
Coliform, total generalmaximum single sample≤ 230 MPN/100mLall year001
BOD, 5-day, percent removalmonthly average minimum≥ 85 %all year001
Solids, suspended percent removalmonthly average minimum≥ 85 %all year001
BOD, 5-day, 20 deg. Cdaily maximumreport only (mg/L)all yearINF
Solids, total suspendeddaily maximumreport only (mg/L)all yearINF
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all yearINF
Flow, in conduit or thru treatment plantdaily averagereport only (MGD)all yearINF
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all yearINF

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/CA1000001 · MCP: https://passage-data.com/mcp