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Santa Ynez Band of Chumash Ind

Sewage treatment plant, Santa Ynez, California. NPDES permit CA0050008 expired May 31, 2025; its limits still apply. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 32 days after each period: outfall 001 form A quarterly (50 values), outfall 001 form Q quarterly (7 values), outfall 001 form S twice a year (14 values), outfall INF form A quarterly (4 values), outfall 001 form Y1 yearly
Last report on file
August 2026
Oct 2024 – Sep 2025
5 values over a limit, 0 required values missing, 0 of 31 reports late

Limits in force (79)

ParameterStatisticLimitMonthsOutfall
Temperature, water deg. centigrademonthly averagereport only (deg C)all year001
Temperature, water deg. centigrademonthly averagereport only (deg C)all year001
Temperature, water deg. centigradedaily maximumreport only (deg C)all year001
Temperature, water deg. centigradedaily maximumreport only (deg C)all year001
Streamflowdaily maximumreport only (cfs)all year001
Streamflowdaily maximumreport only (cfs)all year001
Conductivitydaily maximumreport only (umho/cm)all year001
Conductivitydaily maximumreport only (umho/cm)all year001
BOD, 5-day, 20 deg. Cmonthly average≤ 10 mg/Lall year001
BOD, 5-day, 20 deg. Cmonthly average≤ 10 mg/Lall year001
BOD, 5-day, 20 deg. Cweekly average≤ 15 mg/Lall year001
BOD, 5-day, 20 deg. Cweekly average≤ 15 mg/Lall year001
BOD, 5-day, 20 deg. Cmonthly average≤ 16.7 lb/dall year001
BOD, 5-day, 20 deg. Cmonthly average≤ 16.7 lb/dall year001
BOD, 5-day, 20 deg. Cweekly average≤ 25 lb/dall year001
BOD, 5-day, 20 deg. Cweekly average≤ 25 lb/dall year001
pHminimum≥ 7 SUall year001
pHminimum≥ 7 SUall year001
pHmaximum≤ 8.3 SUall year001
pHmaximum≤ 8.3 SUall year001
Alkalinity, total [as CaCO3]daily maximumreport only (mg/L)all year001
Alkalinity, total [as CaCO3]daily maximumreport only (mg/L)all year001
Solids, total suspendedmonthly average≤ 10 mg/Lall year001
Solids, total suspendedmonthly average≤ 10 mg/Lall year001
Solids, total suspendedweekly average≤ 15 mg/Lall year001
Solids, total suspendedweekly average≤ 15 mg/Lall year001
Solids, total suspendedmonthly average≤ 16.7 lb/dall year001
Solids, total suspendedmonthly average≤ 16.7 lb/dall year001
Solids, total suspendedweekly average≤ 25 lb/dall year001
Solids, total suspendedweekly average≤ 25 lb/dall year001
Solids, settleablemonthly average≤ 1 mL/Lall year001
Solids, settleablemonthly average≤ 1 mL/Lall year001
Solids, settleabledaily maximum≤ 2 mL/Lall year001
Solids, settleabledaily maximum≤ 2 mL/Lall year001
Ammonia, unionizeddaily maximum≤ .025 mg/Lall year001
Ammonia, unionizeddaily maximum≤ .025 mg/Lall year001
Nitrogen, nitrate total [as N]monthly average≤ 5 mg/Lall year001
Nitrogen, nitrate total [as N]daily maximum≤ 7.5 mg/Lall year001
Hardness, total [as CaCO3]daily maximumreport only (mg/L)all year001
Hardness, total [as CaCO3]daily maximumreport only (mg/L)all year001
Sodium, total [as Na]monthly average≤ 60 mg/Lall year001
Oil and greasemonthly average≤ 10 mg/Lall year001
Oil and greasedaily maximum≤ 15 mg/Lall year001
Dichlorobromomethanedaily maximum≤ .56 ug/Lall year001
Bromoformdaily maximum≤ 4.3 ug/Lall year001
Flow, in conduit or thru treatment plantdaily maximum≤ .2 MGDall year001
Flow, in conduit or thru treatment plantdaily maximum≤ .2 MGDall year001
Chlorine, total residualmonthly average≤ 11 ug/Lall year001
Chlorine, total residualmonthly average≤ 11 ug/Lall year001
Chlorine, total residualdaily maximum≤ 19 ug/Lall year001
Chlorine, total residualdaily maximum≤ 19 ug/Lall year001
Phosphorus, Totalmonthly averagereport only (mg/L)all year001
Phosphorus, Totalmonthly averagereport only (mg/L)all year001
Phosphorus, Totaldaily maximumreport only (mg/L)all year001
Phosphorus, Totaldaily maximumreport only (mg/L)all year001
Solids, total dissolvedrolling average≤ 700 mg/Lall year001
Solids, total dissolvedrolling average≤ 700 mg/Lall year001
Solids, total dissolvedmonthly averagereport only (mg/L)all year001
Solids, total dissolvedmonthly averagereport only (mg/L)all year001
Solids, total dissolvedmonthly averagereport only (mg/L)all year001
Solids, total dissolvedmonthly averagereport only (mg/L)all year001
Coliform, total generaldaily maximum≤ 2.2 MPN/100mLall year001
Coliform, total generaldaily maximum≤ 2.2 MPN/100mLall year001
BOD, 5-day, percent removalmonthly average minimum≥ 85 %all year001
BOD, 5-day, percent removalmonthly average minimum≥ 85 %all year001
Solids, suspended percent removalmonthly average minimum≥ 85 %all year001
Solids, suspended percent removalmonthly average minimum≥ 85 %all year001
Pass/Fail Static Renewal 7 Day Chronic Ceriodaphnia dubiamonthly averagereport only (pass=0;fail=1)all year001
Pass/Fail Static Renewal 7 Day Chronic Ceriodaphnia dubiamonthly averagereport only (pass=0;fail=1)all year001
Pass/Fail Static Renewal 7 Day Chronic Ceriodaphnia dubiadaily maximumreport only (pass=0;fail=1)all year001
Pass/Fail Static Renewal 7 Day Chronic Ceriodaphnia dubiadaily maximumreport only (pass=0;fail=1)all year001
Pass/Fail Static 96Hr Chronic Selen. Capricornutummonthly averagereport only (pass=0;fail=1)all year001
Pass/Fail Static 96Hr Chronic Selen. Capricornutummonthly averagereport only (pass=0;fail=1)all year001
Pass/Fail Static 96Hr Chronic Selen. Capricornutumdaily maximumreport only (pass=0;fail=1)all year001
Pass/Fail Static 96Hr Chronic Selen. Capricornutumdaily maximumreport only (pass=0;fail=1)all year001
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all yearINF
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all yearINF
Solids, total suspendedmonthly averagereport only (mg/L)all yearINF
Solids, total suspendedmonthly averagereport only (mg/L)all yearINF

How strict are these limits?

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

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/CA0050008 · MCP: https://passage-data.com/mcp