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Scotts Valley, City of

Sewage treatment plant, major discharger, Scotts Valley, California. NPDES permit CA0048828 expired Feb 1, 2018; its limits still apply. Last 12 months: over a limit 3 times (last June 2026), 16 of 23 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 32 days after each period: outfall 001 form A monthly (36 values), outfall 001 form Q quarterly (4 values), outfall INF form A monthly (6 values)
Last report on file
July 2026
Oct 2024 – Sep 2025
4 values over a limit, 0 required values missing, 13 of 28 reports late

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

Period endingParameterReportedLimitOver by
February 2026Enterococci, mean< 2420 MPN/100mL≤ 2400 MPN/100mL1%
June 2026Coliform, total general, instantaneous maximum160000 MPN/100mL≤ 100000 MPN/100mL60%
June 2026Enterococci, mean< 2420 MPN/100mL≤ 2400 MPN/100mL1%

Limits in force (46)

ParameterStatisticLimitMonthsOutfall
Turbiditymonthly average≤ 75 NTUall year001
Turbidityhighest weekly average≤ 100 NTUall year001
Turbidityinstantaneous maximum≤ 225 NTUall year001
pHminimum≥ 6 SUall year001
pHmaximum≤ 9 SUall year001
Solids, total suspendedmonthly average≤ 30 mg/Lall year001
Solids, total suspendedhighest weekly average≤ 45 mg/Lall year001
Solids, total suspendeddaily maximum≤ 90 mg/Lall year001
Solids, total suspendedmonthly average≤ 375 lb/dall year001
Solids, total suspendedhighest weekly average≤ 565 lb/dall year001
Solids, settleablemonthly average≤ 1 mL/Lall year001
Solids, settleablehighest weekly average≤ 1.5 mL/Lall year001
Solids, settleableinstantaneous maximum≤ 3 mL/Lall year001
Oil and greasemonthly average≤ 25 mg/Lall year001
Oil and greasehighest weekly average≤ 40 mg/Lall year001
Oil and greasedaily maximum≤ 75 mg/Lall year001
Oil and greasemonthly average≤ 310 lb/dall year001
Oil and greasehighest weekly average≤ 500 lb/dall year001
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year001
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year001
Chlorine, total residual6-month median≤ .23 mg/Lall year001
Chlorine, total residualdaily maximum≤ .92 mg/Lall year001
Chlorine, total residualinstantaneous maximum≤ 6.9 mg/Lall year001
Chlorine, total residual6-month median≤ 2.9 lb/dall year001
Chlorine, total residualdaily maximum≤ 12 lb/dall year001
Enterococcilog mean≤ 1200 MPN/100mLall year001
Enterococcimean≤ 2400 MPN/100mLall year001
Coliform, fecal generallog mean≤ 20000 MPN/100mLall year001
Coliform, total general90th percentile≤ 40000 MPN/100mLall year001
Coliform, total generalinstantaneous maximum≤ 100000 MPN/100mLall year001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 25 mg/Lall year001
BOD, carbonaceous [5 day, 20 C]highest weekly average≤ 40 mg/Lall year001
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 85 mg/Lall year001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 310 lb/dall year001
BOD, carbonaceous [5 day, 20 C]highest weekly average≤ 500 lb/dall year001
Solids, suspended percent removalmonthly average minimum≥ 85 %all year001
TU Static Renewal 96Hr Acute Menidia beryllinadaily maximum≤ 3.7 tox acuteall year001
TU Static 48Hr Chronic Macrocystis pyriferadaily maximum≤ 115 tox chronicall year001
TU Static 48Hr Chronic Haliotis rufescensdaily maximum≤ 115 tox chronicall year001
Toxic Units Static Renewal 7-Day Chronic Atherinops affinis daily maximum≤ 115 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
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all yearINF
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all yearINF

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

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Your permit document is the final word. As JSON: /api/v1/permits/CA0048828 · MCP: https://passage-data.com/mcp