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PacifiCorp

Electric Services, major discharger, Vineyard, Utah. NPDES permit UT0025623, in force until Jan 31, 2029. Last 12 months: over a limit once (last May 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form A monthly (19 values), form P quarterly (9 values), form W quarterly (1 value)
Last report on file
August 2026
Oct 2024 – Sep 2025
3 values over a limit, 0 required values missing, 1 of 20 reports late

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

Period endingParameterReportedLimitOver by
May 2026Iron, total [as Fe], daily maximum1.2 mg/L≤ 1 mg/L20%

Limits in force (44)

ParameterStatisticLimitMonths
Temperature, water deg. fahrenheitdaily maximum≤ 80.5 deg FApr–Jun
Temperature, water deg. fahrenheitdaily maximum≤ 73.7 deg FOct–Dec
Temperature, water deg. fahrenheitdaily maximum≤ 70.9 deg FJan–Mar
Temperature, water deg. fahrenheitdaily maximum≤ 81.8 deg FJul–Sep
Oxygen, dissolved [DO]daily minimum≥ 5 mg/Lall year
pHdaily minimum≥ 6.5 SUall year
pHdaily maximum≤ 9 SUall year
Solids, total suspendedmaximum monthly average≤ 30 mg/Lall year
Solids, total suspendeddaily maximum≤ 100 mg/Lall year
Oil & Greasedaily maximum≤ 10 mg/Lall year
Phosphorus, total [as P]30-day averagereport only (mg/L)all year
Cyanide, total [as CN]daily maximumreport only (mg/L)all year
Arsenic, total [as As]daily maximumreport only (mg/L)all year
Cadmium, total [as Cd]daily maximumreport only (mg/L)all year
Chromium, hexavalent [as Cr]daily maximum≤ .022 mg/Lall year
Chromium, total [as Cr]daily maximum≤ .2 mg/Lall year
Copper, total [as Cu]daily maximum≤ 1 mg/Lall year
Copper, total [as Cu]quarterly average≤ 73 lb/qtrSep
Copper, total [as Cu]quarterly average≤ 58 lb/qtrDec
Copper, total [as Cu]quarterly average≤ 54 lb/qtrMar
Copper, total [as Cu]quarterly average≤ 68 lb/qtrJun
Iron, total [as Fe]daily maximum≤ 1 mg/Lall year
Lead, total [as Pb]daily maximumreport only (mg/L)all year
Nickel, total [as Ni]daily maximumreport only (mg/L)all year
Silver, total [as Ag]daily maximumreport only (mg/L)all year
Zinc, total [as Zn]quarterly average≤ .63 mg/LMar, Jun, Sep, Dec
Zinc, total [as Zn]daily maximum≤ .87 mg/Lall year
Aluminum, total [as Al]daily maximumreport only (mg/L)all year
Selenium, total [as Se]daily maximumreport only (mg/L)all year
Chlorine, total residualdaily maximum≤ .03 mg/LJul–Sep
Chlorine, total residualdaily maximum≤ .05 mg/LOct–Dec
Chlorine, total residualdaily maximum≤ .06 mg/LJan–Jun
Solids, total dissolveddaily maximum≤ 2059.9 mg/LJul–Sep
Solids, total dissolveddaily maximum≤ 2317.2 mg/LJan–Mar
Solids, total dissolveddaily maximum≤ 2481.5 mg/LOct–Dec
Solids, total dissolveddaily maximum≤ 2712.6 mg/LApr–Jun
Mercury, total [as Hg]quarterly average≤ .000029 mg/LMar, Jun, Sep, Dec
Mercury, total [as Hg]daily maximumreport only (mg/L)all year
Flow, totaldaily maximum≤ 2.9 MGDJul–Sep
Flow, totaldaily maximum≤ 2.3 MGDOct–Dec
Flow, totaldaily maximum≤ 2.2 MGDJan–Mar
Flow, totaldaily maximum≤ 2.7 MGDApr–Jun
Pass/Fail Static Renewal 7 Day Chronic Ceriodaphnia dubiadaily maximum≤ 0 pass=0;fail=1Apr, May, Jun, Oct, Nov, Dec
Pass/Fail Static Renewal 7Day Chronic Pimephales promelasdaily maximum≤ 0 pass=0;fail=1Jan, Feb, Mar, Jul, Aug, Sep

How strict are these limits?

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

Same industry: the 3 Electric Services permits in Utah.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/UT0025623 · MCP: https://passage-data.com/mcp