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Brentwood, City of

Sewage treatment plant, major discharger, Brentwood, California. NPDES permit CA0082660, in force until May 31, 2029. 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 (27 values), outfall EFF1 form Q quarterly (4 values), outfall INF1 form A monthly (8 values), outfall EFF1 form S twice a year, outfall EFF1 form Y yearly
Last report on file
August 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 4 reports late

Limits in force (53)

ParameterStatisticLimitMonthsOutfall
Temperature, water deg. fahrenheitinstantaneous maximumreport only (deg F)all yearEFF1
Specific conductancemonthly averagereport only (umho/cm)all yearEFF1
Specific conductancedaily maximumreport only (umho/cm)all yearEFF1
Oxygen, dissolved [DO]instantaneous minimumreport only (mg/L)all yearEFF1
BOD, 5-day, 20 deg. Cmonthly average≤ 7 mg/Lall yearEFF1
BOD, 5-day, 20 deg. Cweekly average≤ 12 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≤ .58 mg/Lall yearEFF1
Nitrogen, ammonia total [as N]weekly average≤ 1.3 mg/Lall yearEFF1
Nitrogen, nitrite total [as N]daily maximumreport only (mg/L)all yearEFF1
Nitrogen, nitrate total [as N]daily maximumreport only (mg/L)all yearEFF1
Hardness, total [as CaCO3]daily maximumreport only (mg/L)all yearEFF1
Chloride [as Cl]monthly average≤ 375 mg/Lall yearEFF1
Chloride [as Cl]daily maximum≤ 494 mg/Lall yearEFF1
Sulfate, total [as SO4]daily maximumreport only (mg/L)all yearEFF1
Dichlorobromomethanemonthly average≤ 46 ug/Lall yearEFF1
Dichlorobromomethanedaily maximum≤ 72 ug/Lall yearEFF1
Dibromochloromethanemonthly average≤ 34 ug/Lall yearEFF1
Dibromochloromethanedaily maximum≤ 58 ug/Lall yearEFF1
Chlorpyrifosdaily maximumreport only (ug/L)all yearEFF1
Diazinondaily maximumreport only (ug/L)all yearEFF1
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all yearEFF1
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all yearEFF1
Chlorine, total residual4-day average≤ .011 mg/Lall yearEFF1
Chlorine, total residual1-hour average≤ .019 mg/Lall yearEFF1
Sodium Bisulfitedaily maximumreport only (mg/L)all yearEFF1
Temperature Increase Deg. Finstantaneous maximum≤ 24 deg FJan, DecEFF1
Temperature Increase Deg. Finstantaneous maximum≤ 20 deg FFeb–NovEFF1
Diazinon + Chlorpyrifosmonthly average≤ 1 ug/Lall yearEFF1
Diazinon + Chlorpyrifosweekly average≤ 1 ug/Lall yearEFF1
Mercury, total recoverableannual total≤ 34 g/yrall yearEFF1
Mercury, total recoverabledaily maximumreport only (ng/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
Methylmercuryannual totalreport only (g/yr)all yearEFF1
Methylmercurydaily maximumreport only (ng/L)all yearEFF1
BOD, 5-day, percent removalmonthly average minimum≥ 85 %all yearEFF1
Solids, suspended percent removalmonthly average minimum≥ 85 %all yearEFF1
%Effect Statre 4Day Chronic Selen. Capr.daily maximum≤ 50 % effectall yearEFF1
Pass/Fail Static 96Hr Chronic Selen. Capricornutumdaily maximum≤ 0 pass=0;fail=1all yearEFF1
Pass/Fail Static 96Hr Chronic Selen. Capricornutummonthly median≤ 0 pass=0;fail=1all yearEFF1
Specific conductancemonthly averagereport only (umho/cm)all yearINF1
Specific conductancedaily maximumreport only (umho/cm)all yearINF1
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all yearINF1
BOD, 5-day, 20 deg. Cdaily maximumreport only (mg/L)all yearINF1
Solids, total suspendedmonthly averagereport only (mg/L)all yearINF1
Solids, total suspendeddaily maximumreport only (mg/L)all yearINF1
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all yearINF1
Flow, in conduit or thru treatment plantdaily 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/CA0082660 · MCP: https://passage-data.com/mcp