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Paradise Irrigation District

Water Supply, Magalia, California. NPDES permit CA0083488 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 monthly (16 values), outfall 001 form Q quarterly (2 values), outfall 001 form Y yearly, outfall 001 form Z every 60 months, outfall INF form Y yearly
Last report on file
September 2026
Oct 2024 – Sep 2025
1 value over a limit, 0 required values missing, 0 of 19 reports late

Limits in force (67)

ParameterStatisticLimitMonthsOutfall
Turbiditydaily maximumreport only (NTU)all year001
Specific conductancedaily maximumreport only (umho/cm)all year001
pHminimum≥ 6.5 SUall year001
pHmaximum≤ 8.5 SUall year001
Solids, total suspendedmonthly average≤ 30 mg/Lall year001
Solids, total suspendeddaily maximum≤ 50 mg/Lall year001
Solids, total suspendedmonthly average≤ 150 lb/dall year001
Solids, total suspendeddaily maximum≤ 250 lb/dall year001
Solids, settleablemonthly average≤ .1 mL/Lall year001
Solids, settleabledaily maximum≤ .2 mL/Lall year001
Hardness, total [as CaCO3]daily maximumreport only (mg/L)all year001
Aluminum, total recoverabledaily maximumreport only (ug/L)all year001
Dichlorobromomethanemonthly average≤ 3.3 ug/Lall year001
Dichlorobromomethanedaily maximum≤ 5.2 ug/Lall 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 residualmonthly average≤ .011 mg/Lall year001
Chlorine, total residualdaily maximum≤ .019 mg/Lall year001
%Effect Static 4 Day Chronic Raphidocelis subcapitatamaximumreport only (% effect)all year001
%Effect Static Renewal 7 Day Chronic Ceriodaphnia dubiamaximumreport only (% effect)all year001
%Effect Static Renewal 7Day Chronic Pimephales promelasmaximumreport only (% effect)all year001
%Surv Static Renewal 96Hr Oncorhynchus mykissminimum≥ 70 % survivalall year001
%Surv Static Renewal 96Hr Oncorhynchus mykissminimum≥ 70 % survivalall year001
%Surv Static Renewal 96Hr Oncorhynchus mykissminimum median≥ 90 % survivalall year001
%Surv Static Renewal 96Hr Oncorhynchus mykissminimum median≥ 90 % survivalall year001
% Survival Flow Through 96Hr Acute Oncorhynchus mykissminimumreport only (% survival)all year001
% Survival Flow Through 96Hr Acute Oncorhynchus mykissminimumreport only (% survival)all year001
% Survival Flow Through 96Hr Acute Oncorhynchus mykissminimum medianreport only (% survival)all year001
% Survival Flow Through 96Hr Acute Oncorhynchus mykissminimum medianreport only (% survival)all year001
Static 4Day Chronic Selen. Capricornutumaveragereport only (tox chronic)all year001
Static 4Day Chronic Selen. Capricornutumdaily maximumreport only (tox chronic)all year001
TU Static Renewal 7-Day Chronic Ceriodaphnia dubiaaveragereport only (tox chronic)all year001
TU Static Renewal 7-Day Chronic Ceriodaphnia dubiadaily maximumreport only (tox chronic)all year001
TU Static Renewal 7-Day Chronic Pimphales promelasaveragereport only (tox chronic)all year001
TU Static Renewal 7-Day Chronic Pimphales promelasdaily maximumreport only (tox chronic)all year001
Specific conductancedaily maximumreport only (umho/cm)all yearINF
Specific conductancedaily maximumreport only (umho/cm)all yearINF
Alkalinity, total [as CaCO3]daily maximumreport only (mg/L)all yearINF
Alkalinity, total [as CaCO3]daily maximumreport only (mg/L)all yearINF
Alkalinity, bicarbonate [as CaCO3]daily maximumreport only (mg/L)all yearINF
Alkalinity, bicarbonate [as CaCO3]daily maximumreport only (mg/L)all yearINF
Carbonate ion- [as CO3]daily maximumreport only (mg/L)all yearINF
Carbonate ion- [as CO3]daily maximumreport only (mg/L)all yearINF
Phosphorus, total [as P]daily maximumreport only (mg/L)all yearINF
Phosphorus, total [as P]daily maximumreport only (mg/L)all yearINF
Hardness, total [as CaCO3]daily maximumreport only (mg/L)all yearINF
Hardness, total [as CaCO3]daily maximumreport only (mg/L)all yearINF
Calcium, total [as Ca]daily maximumreport only (mg/L)all yearINF
Calcium, total [as Ca]daily maximumreport only (mg/L)all yearINF
Sodium, total recoverabledaily maximumreport only (mg/L)all yearINF
Sodium, total recoverabledaily maximumreport only (mg/L)all yearINF
Magnesium, total [as Mg]daily maximumreport only (mg/L)all yearINF
Magnesium, total [as Mg]daily maximumreport only (mg/L)all yearINF
Potassium, total [as K]daily maximumreport only (mg/L)all yearINF
Potassium, total [as K]daily maximumreport only (mg/L)all yearINF
Iron, total recoverabledaily maximumreport only (mg/L)all yearINF
Iron, total recoverabledaily maximumreport only (mg/L)all yearINF
Boron, total recoverabledaily maximumreport only (mg/L)all yearINF
Boron, total recoverabledaily maximumreport only (mg/L)all yearINF
Manganese, total recoverabledaily maximumreport only (mg/L)all yearINF
Manganese, total recoverabledaily maximumreport only (mg/L)all yearINF
Chloridedaily maximumreport only (mg/L)all yearINF
Chloridedaily maximumreport only (mg/L)all yearINF
Hydroxidedaily maximumreport only (mg/L)all yearINF
Hydroxidedaily maximumreport only (mg/L)all yearINF
Solids, total dissolveddaily maximumreport only (mg/L)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.

Same industry: the 11 Water Supply permits in California.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/CA0083488 · MCP: https://passage-data.com/mcp