Passage Data · Check a report · Use it from your AI

San Juan Bautista, City of

Sewage treatment plant, San Juan Bautista, California. NPDES permit CA0047902 expired May 9, 2014; its limits still apply. Last 12 months: over a limit 2 times (last December 2025), 5 of 20 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 62 days after each period: outfall 001 form A quarterly (24 values), outfall 001 form Q quarterly (8 values), outfall INF form A quarterly (11 values), outfall 001 form Y yearly
Last report on file
June 2026
Oct 2024 – Sep 2025
13 values over a limit, 191 required values missing, 18 of 29 reports late

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

Period endingParameterReportedLimit
December 2025TU Static 4 Day Chronic Raphidocelis subcapitata (formerly Selenastrum capricornutum), daily maximum> 1 tox chronic≤ 1 tox chronic
December 2025TU Static Renewal 7-Day Chronic Ceriodaphnia dubia, daily maximum> 1 tox chronic≤ 1 tox chronic

Limits in force (48)

ParameterStatisticLimitMonthsOutfall
Temperature, water deg. fahrenheitinstantaneous maximumreport only (deg F)all year001
Color [PT-CO units]daily maximumreport only (col unit (pc))all year001
Oxygen, dissolved [DO]instantaneous minimumreport only (mg/L)all year001
BOD, 5-day, 20 deg. Cmonthly average≤ 20 mg/Lall year001
BOD, 5-day, 20 deg. Chighest weekly average≤ 45 mg/Lall year001
BOD, 5-day, 20 deg. Cdaily maximum≤ 60 mg/Lall year001
pHminimum≥ 6 SUall year001
pHmaximum≤ 9 SUall year001
Solids, total suspendedmonthly average≤ 20 mg/Lall year001
Solids, total suspendedhighest weekly average≤ 45 mg/Lall year001
Solids, total suspendeddaily maximum≤ 60 mg/Lall year001
Solids, settleablemonthly average≤ .1 mL/Lall year001
Solids, settleabledaily maximum≤ .3 mL/Lall year001
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)all year001
Nitrogen, nitrite total [as N]daily maximumreport only (mg/L)all year001
Ammonia, unionizeddaily maximum≤ .025 mg/Lall year001
Nitrogen, nitrate total [as N]daily maximumreport only (mg/L)all year001
Phosphorus, total [as P]daily maximumreport only (mg/L)all year001
Hardness, total [as CaCO3]daily maximumreport only (mg/L)all year001
Sodium, total recoverablemonthly average≤ 250 mg/Lall year001
Chloride [as Cl]monthly average≤ 200 mg/Lall year001
Sulfate, total [as SO4]monthly average≤ 350 mg/Lall year001
Oil and greasemonthly average≤ 10 mg/Lall year001
Oil and greasedaily maximum≤ 20 mg/Lall year001
Chlorine, total residualinstantaneous maximum≤ .1 mg/Lall year001
Solids, total dissolvedmonthly average≤ 1400 mg/Lall year001
Coliform, total generalmedian≤ 23 MPN/100mLall year001
Coliform, total generalinstantaneous maximum≤ 2300 MPN/100mLall year001
BOD, 5-day, percent removalmonthly average minimum≥ 85 %all year001
Solids, suspended percent removalmonthly average minimum≥ 85 %all year001
Chlorine usagemonthly averagereport only (lb/d)all year001
Chlorine usagedaily maximumreport only (lb/d)all year001
Pass/Fail Static Renewal 96Hr Acute Ceriodaphnia dubiadaily maximumreport only (pass=0;fail=1)all year001
Pass/Fail Static Renewal 96Hr Acute Pimephales Promelasdaily maximumreport only (pass=0;fail=1)all year001
TU Static 4 Day Chronic Raphidocelis subcapitata (formerly Selenastrum capricornutum)daily maximum≤ 1 tox chronicall year001
TU Static Renewal 7-Day Chronic Ceriodaphnia dubiadaily maximum≤ 1 tox chronicall year001
TU Static Renewal 7-Day Chronic Pimphales promelasdaily maximum≤ 1 tox chronicall year001
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all yearINF
BOD, 5-day, 20 deg. Cdaily maximumreport only (mg/L)all yearINF
Solids, total suspendedmonthly averagereport only (mg/L)all yearINF
Solids, total suspendeddaily maximumreport only (mg/L)all yearINF
Hardness, total [as CaCO3]daily maximumreport only (mg/L)all yearINF
Sodium, total recoverabledaily maximumreport only (mg/L)all yearINF
Chloride [as Cl]daily maximumreport only (mg/L)all yearINF
Sulfate, total [as SO4]daily 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 maximumreport only (MGD)all yearINF
Solids, total dissolveddaily maximumreport only (mg/L)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

· Save this facility as a site · Superfund sites nearby · Your permits on one board

On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/CA0047902 · MCP: https://passage-data.com/mcp