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Hawaiian Electric Company, Inc.

Electric Services, major discharger, Pearl City, Hawaii. NPDES permit HI0000604, in force until Nov 30, 2030. Last 12 months: over a limit 4 times (last June 2026), 11 required values missing, 12 of 136 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: outfall 003 form A monthly (28 values), outfall 003I form A monthly (18 values), outfall 004 form A monthly (29 values), outfall 004I form A monthly (19 values), outfall LVW form 01 monthly (12 values), outfall MCW form 01 monthly (20 values), and 56 more forms
Last report on file
August 2026
Oct 2024 – Sep 2025
3 values over a limit, 18 required values missing, 18 of 213 reports late

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

Period endingOutfallParameterReportedLimitOver by
March 2026003Pass/Fail Static 20 Minute Fertilization Chronic Tripneustes gratilla, value1 pass=0;fail=1< 1 pass=0;fail=1—
March 2026004Pass/Fail Static 20 Minute Fertilization Chronic Tripneustes gratilla, value1 pass=0;fail=1< 1 pass=0;fail=1—
May 2026004Temperature, water deg. centigrade, daily maximum39.6 deg C≤ 38.9 deg C2%
June 2026003Pass/Fail Static 20 Minute Fertilization Chronic Tripneustes gratilla, value1 pass=0;fail=1< 1 pass=0;fail=1—

Limits in force (512)

ParameterStatisticLimitMonthsOutfall
Nitrogen, total [as N]daily maximumreport only (ug/L) (alert, not enforceable)all year002S
Phosphorus, total [as P]daily maximumreport only (ug/L) (alert, not enforceable)all year002S
Iron, total recoverabledaily maximum≤ 1 mg/L (alert, not enforceable)all year002S
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD) (alert, not enforceable)all year002S
Nitrogen, ammonia total [as NH4]daily maximumreport only (ug/L) (alert, not enforceable)all year002S
Temperature, water deg. centigrademonthly average≤ 36.1 deg Call year003
Temperature, water deg. centigradedaily maximum≤ 38.9 deg Call year003
Turbiditydaily maximumreport only (NTU)all year003
pHminimum≥ 6.8 SUall year003
pHmaximum≤ 8.8 SUall year003
Nitrogen, total [as N]daily maximumreport only (ug/L)all year003
Nitrogen, ammonia total [as N]daily maximum≤ 60.2 ug/Lall year003
Phosphorus, total [as P]daily maximumreport only (ug/L)all year003
Cyanide, total [as CN]monthly average≤ 400 ug/Lall year003
Cyanide, total [as CN]daily maximum≤ 18 ug/Lall year003
Cyanide, total [as CN]daily maximumreport only (ug/L)all year003
Cyanide, total [as CN]monthly average≤ 540 lb/dall year003
Cyanide, total [as CN]daily maximum≤ 24 lb/dall year003
Arsenic, total recoverableannual average≤ 18 ug/Lall year003
Arsenic, total recoverabledaily maximumreport only (ug/L)all year003
Arsenic, total recoverabledaily maximum≤ 69 ug/Lall year003
Arsenic, total recoverableannual average≤ 24 lb/dall year003
Arsenic, total recoverabledaily maximum≤ 93 lb/dall year003
Selenium, total recoverablemonthly average≤ 4208 ug/Lall year003
Selenium, total recoverabledaily maximum≤ 403 ug/Lall year003
Selenium, total recoverabledaily maximumreport only (ug/L)all year003
Selenium, total recoverablemonthly average≤ 5685 lb/dall year003
Selenium, total recoverabledaily maximum≤ 544 lb/dall year003
Thallium, total recoverabledaily maximumreport only (ug/L)all year003
Thallium, total recoverabledaily maximumreport only (ug/L)all year003
Beryllium, total recoverable [as Be]daily maximumreport only (ug/L)all year003
Chromium, hexavalent [as Cr]daily maximumreport only (ug/L)all year003
Nickel, total recoverabledaily maximumreport only (ug/L)all year003
Nickel, total recoverabledaily maximumreport only (ug/L)all year003
Silver total recoverabledaily maximumreport only (ug/L)all year003
Silver total recoverabledaily maximumreport only (ug/L)all year003
Zinc, total recoverabledaily maximumreport only (ug/L)all year003
Zinc, total recoverabledaily maximumreport only (ug/L)all year003
Aluminum, total recoverabledaily maximumreport only (ug/L)all year003
Cadmium, total recoverabledaily maximumreport only (ug/L)all year003
Cadmium, total recoverabledaily maximumreport only (ug/L)all year003
Lead, total recoverabledaily maximumreport only (ug/L)all year003
Lead, total recoverabledaily maximumreport only (ug/L)all year003
Chromium, total recoverabledaily maximumreport only (ug/L)all year003
Copper, total recoverabledaily maximum≤ 187 ug/Lall year003
Copper, total recoverabledaily maximumreport only (ug/L)all year003
Copper, total recoverabledaily maximum≤ 253 lb/dall year003
Antimony, total recoverabledaily maximumreport only (ug/L)all year003
2-Methyl-4,6-dinitrophenoldaily maximumreport only (ug/L)all year003
Dichlorobromomethanedaily maximumreport only (ug/L)all year003
Carbon tetrachloridedaily maximumreport only (ug/L)all year003
1,2-Dichloroethanedaily maximumreport only (ug/L)all year003
Bromoformdaily maximumreport only (ug/L)all year003
Chloroformdaily maximumreport only (ug/L)all year003
Toluenedaily maximumreport only (ug/L)all year003
Benzenedaily maximumreport only (ug/L)all year003
Oxidants, total residualmonthly average≤ 13 ug/Lall year003
Oxidants, total residualdaily maximum≤ 13 ug/Lall year003
Oxidants, total residualmonthly average≤ 18 lb/dall year003
Oxidants, total residualdaily maximum≤ 18 lb/dall year003
Acenaphthenedaily maximumreport only (ug/L)all year003
Acroleindaily maximumreport only (ug/L)all year003
Acrylonitriledaily maximumreport only (ug/L)all year003
Anthracenedaily maximumreport only (ug/L)all year003
Benzo[b]fluoranthenedaily maximumreport only (ug/L)all year003
Benzo[k]fluoranthenedaily maximumreport only (ug/L)all year003
Benzo[a]pyrenedaily maximumreport only (ug/L)all year003
Bis[2-chloroethyl] etherdaily maximumreport only (ug/L)all year003
Bis[2-chloro-1-methylethyl] etherdaily maximumreport only (ug/L)all year003
Butyl benzyl phthalatedaily maximumreport only (ug/L)all year003
Chlorobenzenedaily maximumreport only (ug/L)all year003
Chlorodibromomethanedaily maximumreport only (ug/L)all year003
Chrysenedaily maximumreport only (ug/L)all year003
Diethyl phthalatedaily maximumreport only (ug/L)all year003
Dimethyl phthalatedaily maximumreport only (ug/L)all year003
1,2-Diphenylhydrazinedaily maximumreport only (ug/L)all year003
Endosulfan sulfatedaily maximumreport only (ug/L)all year003
.beta.-Endosulfandaily maximumreport only (ug/L)all year003
.alpha.-Endosulfandaily maximumreport only (ug/L)all year003
Endrin aldehydedaily maximumreport only (ug/L)all year003
Ethylbenzenedaily maximumreport only (ug/L)all year003
Fluoranthenedaily maximumreport only (ug/L)all year003
Fluorenedaily maximumreport only (ug/L)all year003
Hexachlorocyclopentadienedaily maximumreport only (ug/L)all year003
Hexachlorobutadienedaily maximumreport only (ug/L)all year003
Hexachloroethanedaily maximumreport only (ug/L)all year003
Indeno[1,2,3-cd]pyrenedaily maximumreport only (ug/L)all year003
Isophoronedaily maximumreport only (ug/L)all year003
Methyl bromide [Bromomethane]daily maximumreport only (ug/L)all year003
Methylene chloridedaily maximumreport only (ug/L)all year003
N-Nitrosodi-N-propylaminedaily maximumreport only (ug/L)all year003
N-Nitrosodiphenylaminedaily maximumreport only (ug/L)all year003
N-Nitrosodimethylamine [NDMA]daily maximumreport only (ug/L)all year003
Nitrobenzenedaily maximumreport only (ug/L)all year003
Pyrenedaily maximumreport only (ug/L)all year003
Tetrachloroethylenedaily maximumreport only (ug/L)all year003
1,1-Dichloroethylenedaily maximumreport only (ug/L)all year003
1,1,1-Trichloroethanedaily maximumreport only (ug/L)all year003
1,1,2-Trichloroethanedaily maximumreport only (ug/L)all year003
1,1,2,2-Tetrachloroethanedaily maximumreport only (ug/L)all year003
Benzo[a]anthracenedaily maximumreport only (ug/L)all year003
1,2-Dichlorobenzenedaily maximumreport only (ug/L)all year003
1,2-Dichloropropanedaily maximumreport only (ug/L)all year003
trans-1,2-Dichloroethylenedaily maximumreport only (ug/L)all year003
1,2,4-Trichlorobenzenedaily maximumreport only (ug/L)all year003
Dibenz[a,h]anthracenedaily maximumreport only (ug/L)all year003
1,3-Dichlorobenzenedaily maximumreport only (ug/L)all year003
1,4-Dichlorobenzenedaily maximumreport only (ug/L)all year003
2-Chloronaphthalenedaily maximumreport only (ug/L)all year003
2-Chlorophenoldaily maximumreport only (ug/L)all year003
2,4-Dichlorophenoldaily maximumreport only (ug/L)all year003
2,4-Dimethylphenoldaily maximumreport only (ug/L)all year003
2,4-Dinitrotoluenedaily maximumreport only (ug/L)all year003
2,4-Dinitrophenoldaily maximumreport only (ug/L)all year003
2,4,6-Trichlorophenoldaily maximumreport only (ug/L)all year003
3,3'-Dichlorobenzidinedaily maximumreport only (ug/L)all year003
2,3,7,8-Tetrachlorodibenzo-p-dioxindaily maximumreport only (ug/L)all year003
Phenoldaily maximumreport only (ug/L)all year003
Naphthalenedaily maximumreport only (ug/L)all year003
Chlorpyrifosdaily maximumreport only (ug/L)all year003
Pentachlorophenoldaily maximumreport only (ug/L)all year003
2,4,5-TP[silvex] acids/salts, whole water sampledaily maximumreport only (ug/L)all year003
Di[2-ethylhexyl] phthalate [DEHP]daily maximumreport only (ug/L)all year003
Di-n-butyl phthalatedaily maximumreport only (ug/L)all year003
Benzidinedaily maximumreport only (ug/L)all year003
Vinyl chloridedaily maximumreport only (ug/L)all year003
Trichloroethylenedaily maximumreport only (ug/L)all year003
4,4'-DDTdaily maximumreport only (ug/L)all year003
4,4'-DDDdaily maximumreport only (ug/L)all year003
4,4'-DDEdaily maximumreport only (ug/L)all year003
Aldrindaily maximumreport only (ug/L)all year003
.alpha.-BHCdaily maximumreport only (ug/L)all year003
.beta.-BHCdaily maximumreport only (ug/L)all year003
.gamma.-BHCdaily maximumreport only (ug/L)all year003
Chlordane [tech mix. and metabolites]daily maximumreport only (ug/L)all year003
Dieldrindaily maximumreport only (ug/L)all year003
Endrindaily maximumreport only (ug/L)all year003
Toxaphenedaily maximumreport only (ug/L)all year003
Heptachlordaily maximumreport only (ug/L)all year003
Heptachlor epoxidedaily maximumreport only (ug/L)all year003
Methoxychlordaily maximumreport only (ug/L)all year003
Malathiondaily maximumreport only (ug/L)all year003
Parathiondaily maximumreport only (ug/L)all year003
Demetondaily maximumreport only (ug/L)all year003
Guthiondaily maximumreport only (ug/L)all year003
Hexachlorobenzenedaily maximumreport only (ug/L)all year003
2,4-Dichlorophenoxyacetic aciddaily maximumreport only (ug/L)all year003
Mirexdaily maximumreport only (ug/L)all year003
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year003
Flow, in conduit or thru treatment plantdaily maximum≤ 162 MGDall year003
Chlorine, total residualdaily maximumreport only (ug/L)all year003
2,3,5,6-Tetrachlorophenoldaily maximumreport only (ug/L)all year003
2,4,5-Trichlorophenoldaily maximumreport only (ug/L)all year003
4-Chloro-3-methylphenoldaily maximumreport only (ug/L)all year003
Mercury, total recoverabledaily maximumreport only (ug/L)all year003
Mercury, total recoverabledaily maximumreport only (ug/L)all year003
1,3-Dichloropropenedaily maximumreport only (ug/L)all year003
1,2,4,5-Tetrachlorobenzenedaily maximumreport only (ug/L)all year003
Pentachlorobenzenedaily maximumreport only (ug/L)all year003
N-Nitrosodiethylaminedaily maximumreport only (ug/L)all year003
N-Nitrosopyrrolidinedaily maximumreport only (ug/L)all year003
N-Nitrosodibutylaminedaily maximumreport only (ug/L)all year003
Pentachloroethanedaily maximumreport only (ug/L)all year003
Pass/Fail Static 20 Minute Fertilization Chronic Tripneustes gratillavalue< 1 pass=0;fail=1all year003
Turbiditydaily maximumreport only (NTU)all year003I
Nitrogen, total [as N]daily maximumreport only (ug/L)all year003I
Nitrogen, ammonia total [as N]daily maximumreport only (ug/L)all year003I
Phosphorus, total [as P]daily maximumreport only (ug/L)all year003I
Cyanide, total [as CN]monthly averagereport only (ug/L)all year003I
Cyanide, total [as CN]daily maximumreport only (ug/L)all year003I
Cyanide, total [as CN]monthly averagereport only (lb/d)all year003I
Cyanide, total [as CN]daily maximumreport only (lb/d)all year003I
Arsenic, total recoverableannual averagereport only (ug/L)all year003I
Arsenic, total recoverabledaily maximumreport only (ug/L)all year003I
Arsenic, total recoverableannual averagereport only (lb/d)all year003I
Arsenic, total recoverabledaily maximumreport only (lb/d)all year003I
Selenium, total recoverablemonthly averagereport only (ug/L)all year003I
Selenium, total recoverabledaily maximumreport only (ug/L)all year003I
Selenium, total recoverablemonthly averagereport only (lb/d)all year003I
Selenium, total recoverabledaily maximumreport only (lb/d)all year003I
Copper, total recoverabledaily maximumreport only (ug/L)all year003I
Copper, total recoverabledaily maximumreport only (lb/d)all year003I
Nitrogen, total [as N]daily maximumreport only (ug/L) (alert, not enforceable)all year003S
Phosphorus, total [as P]daily maximumreport only (ug/L) (alert, not enforceable)all year003S
Iron, total recoverabledaily maximum≤ 1 mg/L (alert, not enforceable)all year003S
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD) (alert, not enforceable)all year003S
Nitrogen, ammonia total [as NH4]daily maximumreport only (ug/L) (alert, not enforceable)all year003S
Temperature, water deg. centigrademonthly average≤ 36.1 deg Call year004
Temperature, water deg. centigradedaily maximum≤ 38.9 deg Call year004
Turbiditydaily maximumreport only (NTU)all year004
pHminimum≥ 6.8 SUall year004
pHmaximum≤ 8.8 SUall year004
Nitrogen, total [as N]daily maximumreport only (ug/L)all year004
Nitrogen, ammonia total [as N]daily maximum≤ 60.2 ug/Lall year004
Nitrogen, ammonia total [as N]daily maximum≤ 112.2 lb/dall year004
Phosphorus, total [as P]daily maximumreport only (ug/L)all year004
Cyanide, total [as CN]daily maximumreport only (ug/L)all year004
Arsenic, total recoverableannual average≤ 16 ug/Lall year004
Arsenic, total recoverabledaily maximumreport only (ug/L)all year004
Arsenic, total recoverabledaily maximum≤ 69 ug/Lall year004
Arsenic, total recoverableannual average≤ 29 lb/dall year004
Arsenic, total recoverabledaily maximum≤ 125 lb/dall year004
Selenium, total recoverablemonthly average≤ 4208 ug/Lall year004
Selenium, total recoverabledaily maximum≤ 301 ug/Lall year004
Selenium, total recoverabledaily maximumreport only (ug/L)all year004
Selenium, total recoverablemonthly average≤ 7616 lb/dall year004
Selenium, total recoverabledaily maximum≤ 545 lb/dall year004
Thallium, total recoverabledaily maximumreport only (ug/L)all year004
Thallium, total recoverabledaily maximumreport only (ug/L)all year004
Beryllium, total recoverable [as Be]daily maximumreport only (ug/L)all year004
Chromium, hexavalent [as Cr]daily maximumreport only (ug/L)all year004
Nickel, total recoverablemonthly average≤ 4646 ug/Lall year004
Nickel, total recoverabledaily maximum≤ 76 ug/Lall year004
Nickel, total recoverabledaily maximumreport only (ug/L)all year004
Nickel, total recoverablemonthly average≤ 8408 lb/dall year004
Nickel, total recoverabledaily maximum≤ 138 lb/dall year004
Silver total recoverabledaily maximumreport only (ug/L)all year004
Silver total recoverabledaily maximumreport only (ug/L)all year004
Zinc, total recoverabledaily maximumreport only (ug/L)all year004
Zinc, total recoverabledaily maximumreport only (ug/L)all year004
Aluminum, total recoverabledaily maximumreport only (ug/L)all year004
Cadmium, total recoverabledaily maximumreport only (ug/L)all year004
Cadmium, total recoverabledaily maximumreport only (ug/L)all year004
Lead, total recoverabledaily maximumreport only (ug/L)all year004
Lead, total recoverabledaily maximumreport only (ug/L)all year004
Chromium, total recoverabledaily maximumreport only (ug/L)all year004
Copper, total recoverabledaily maximum≤ 3.5 ug/Lall year004
Copper, total recoverabledaily maximumreport only (ug/L)all year004
Copper, total recoverabledaily maximum≤ 6.3 lb/dall year004
Antimony, total recoverabledaily maximumreport only (ug/L)all year004
2-Methyl-4,6-dinitrophenoldaily maximumreport only (ug/L)all year004
Dichlorobromomethanedaily maximumreport only (ug/L)all year004
Carbon tetrachloridedaily maximumreport only (ug/L)all year004
1,2-Dichloroethanedaily maximumreport only (ug/L)all year004
Bromoformdaily maximumreport only (ug/L)all year004
Chloroformdaily maximumreport only (ug/L)all year004
Toluenedaily maximumreport only (ug/L)all year004
Benzenedaily maximumreport only (ug/L)all year004
Oxidants, total residualmonthly average≤ 13 ug/Lall year004
Oxidants, total residualdaily maximum≤ 13 ug/Lall year004
Oxidants, total residualmonthly average≤ 14 lb/dall year004
Oxidants, total residualdaily maximum≤ 24 lb/dall year004
Acenaphthenedaily maximumreport only (ug/L)all year004
Acroleindaily maximumreport only (ug/L)all year004
Acrylonitriledaily maximumreport only (ug/L)all year004
Anthracenedaily maximumreport only (ug/L)all year004
Benzo[b]fluoranthenedaily maximumreport only (ug/L)all year004
Benzo[k]fluoranthenedaily maximumreport only (ug/L)all year004
Benzo[a]pyrenedaily maximumreport only (ug/L)all year004
Bis[2-chloroethyl] etherdaily maximumreport only (ug/L)all year004
Bis[2-chloro-1-methylethyl] etherdaily maximumreport only (ug/L)all year004
Butyl benzyl phthalatedaily maximumreport only (ug/L)all year004
Chlorobenzenedaily maximumreport only (ug/L)all year004
Chlorodibromomethanedaily maximumreport only (ug/L)all year004
Chrysenedaily maximumreport only (ug/L)all year004
Diethyl phthalatedaily maximumreport only (ug/L)all year004
Dimethyl phthalatedaily maximumreport only (ug/L)all year004
1,2-Diphenylhydrazinedaily maximumreport only (ug/L)all year004
Endosulfan sulfatedaily maximumreport only (ug/L)all year004
.beta.-Endosulfandaily maximumreport only (ug/L)all year004
.alpha.-Endosulfandaily maximumreport only (ug/L)all year004
Endrin aldehydedaily maximumreport only (ug/L)all year004
Ethylbenzenedaily maximumreport only (ug/L)all year004
Fluoranthenedaily maximumreport only (ug/L)all year004
Fluorenedaily maximumreport only (ug/L)all year004
Hexachlorocyclopentadienedaily maximumreport only (ug/L)all year004
Hexachlorobutadienedaily maximumreport only (ug/L)all year004
Hexachloroethanedaily maximumreport only (ug/L)all year004
Indeno[1,2,3-cd]pyrenedaily maximumreport only (ug/L)all year004
Isophoronedaily maximumreport only (ug/L)all year004
Methyl bromide [Bromomethane]daily maximumreport only (ug/L)all year004
Methylene chloridedaily maximumreport only (ug/L)all year004
N-Nitrosodi-N-propylaminedaily maximumreport only (ug/L)all year004
N-Nitrosodiphenylaminedaily maximumreport only (ug/L)all year004
N-Nitrosodimethylamine [NDMA]daily maximumreport only (ug/L)all year004
Nitrobenzenedaily maximumreport only (ug/L)all year004
Pyrenedaily maximumreport only (ug/L)all year004
Tetrachloroethylenedaily maximumreport only (ug/L)all year004
1,1-Dichloroethylenedaily maximumreport only (ug/L)all year004
1,1,1-Trichloroethanedaily maximumreport only (ug/L)all year004
1,1,2-Trichloroethanedaily maximumreport only (ug/L)all year004
1,1,2,2-Tetrachloroethanedaily maximumreport only (ug/L)all year004
Benzo[a]anthracenedaily maximumreport only (ug/L)all year004
1,2-Dichlorobenzenedaily maximumreport only (ug/L)all year004
1,2-Dichloropropanedaily maximumreport only (ug/L)all year004
trans-1,2-Dichloroethylenedaily maximumreport only (ug/L)all year004
1,2,4-Trichlorobenzenedaily maximumreport only (ug/L)all year004
Dibenz[a,h]anthracenedaily maximumreport only (ug/L)all year004
1,3-Dichlorobenzenedaily maximumreport only (ug/L)all year004
1,4-Dichlorobenzenedaily maximumreport only (ug/L)all year004
2-Chloronaphthalenedaily maximumreport only (ug/L)all year004
2-Chlorophenoldaily maximumreport only (ug/L)all year004
2,4-Dichlorophenoldaily maximumreport only (ug/L)all year004
2,4-Dimethylphenoldaily maximumreport only (ug/L)all year004
2,4-Dinitrotoluenedaily maximumreport only (ug/L)all year004
2,4-Dinitrophenoldaily maximumreport only (ug/L)all year004
2,4,6-Trichlorophenoldaily maximumreport only (ug/L)all year004
3,3'-Dichlorobenzidinedaily maximumreport only (ug/L)all year004
2,3,7,8-Tetrachlorodibenzo-p-dioxindaily maximumreport only (ug/L)all year004
Phenoldaily maximumreport only (ug/L)all year004
Naphthalenedaily maximumreport only (ug/L)all year004
Chlorpyrifosdaily maximumreport only (ug/L)all year004
Pentachlorophenoldaily maximumreport only (ug/L)all year004
2,4,5-TP[silvex] acids/salts, whole water sampledaily maximumreport only (ug/L)all year004
Di[2-ethylhexyl] phthalate [DEHP]daily maximumreport only (ug/L)all year004
Di-n-butyl phthalatedaily maximumreport only (ug/L)all year004
Benzidinedaily maximumreport only (ug/L)all year004
Vinyl chloridedaily maximumreport only (ug/L)all year004
Trichloroethylenedaily maximumreport only (ug/L)all year004
4,4'-DDTdaily maximumreport only (ug/L)all year004
4,4'-DDDdaily maximumreport only (ug/L)all year004
4,4'-DDEdaily maximumreport only (ug/L)all year004
Aldrindaily maximumreport only (ug/L)all year004
.alpha.-BHCdaily maximumreport only (ug/L)all year004
.beta.-BHCdaily maximumreport only (ug/L)all year004
.gamma.-BHCdaily maximumreport only (ug/L)all year004
Chlordane [tech mix. and metabolites]daily maximumreport only (ug/L)all year004
Dieldrindaily maximumreport only (ug/L)all year004
Endrindaily maximumreport only (ug/L)all year004
Toxaphenedaily maximumreport only (ug/L)all year004
Heptachlordaily maximumreport only (ug/L)all year004
Heptachlor epoxidedaily maximumreport only (ug/L)all year004
Methoxychlordaily maximumreport only (ug/L)all year004
Malathiondaily maximumreport only (ug/L)all year004
Parathiondaily maximumreport only (ug/L)all year004
Demetondaily maximumreport only (ug/L)all year004
Guthiondaily maximumreport only (ug/L)all year004
Hexachlorobenzenedaily maximumreport only (ug/L)all year004
2,4-Dichlorophenoxyacetic aciddaily maximumreport only (ug/L)all year004
Mirexdaily maximumreport only (ug/L)all year004
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year004
Flow, in conduit or thru treatment plantdaily maximum≤ 217 MGDall year004
Chlorine, total residualdaily maximumreport only (ug/L)all year004
2,3,5,6-Tetrachlorophenoldaily maximumreport only (ug/L)all year004
2,4,5-Trichlorophenoldaily maximumreport only (ug/L)all year004
4-Chloro-3-methylphenoldaily maximumreport only (ug/L)all year004
Mercury, total recoverabledaily maximumreport only (ug/L)all year004
Mercury, total recoverabledaily maximumreport only (ug/L)all year004
1,3-Dichloropropenedaily maximumreport only (ug/L)all year004
1,2,4,5-Tetrachlorobenzenedaily maximumreport only (ug/L)all year004
Pentachlorobenzenedaily maximumreport only (ug/L)all year004
N-Nitrosodiethylaminedaily maximumreport only (ug/L)all year004
N-Nitrosopyrrolidinedaily maximumreport only (ug/L)all year004
N-Nitrosodibutylaminedaily maximumreport only (ug/L)all year004
Pentachloroethanedaily maximumreport only (ug/L)all year004
Pass/Fail Static 20 Minute Fertilization Chronic Tripneustes gratillavalue< 1 pass=0;fail=1all year004
Turbiditydaily maximumreport only (NTU)all year004I
Nitrogen, total [as N]daily maximumreport only (ug/L)all year004I
Nitrogen, ammonia total [as N]daily maximumreport only (ug/L)all year004I
Nitrogen, ammonia total [as N]daily maximumreport only (lb/d)all year004I
Phosphorus, total [as P]daily maximumreport only (ug/L)all year004I
Arsenic, total recoverableannual averagereport only (ug/L)all year004I
Arsenic, total recoverabledaily maximumreport only (ug/L)all year004I
Arsenic, total recoverableannual averagereport only (lb/d)all year004I
Arsenic, total recoverabledaily maximumreport only (lb/d)all year004I
Selenium, total recoverablemonthly averagereport only (ug/L)all year004I
Selenium, total recoverabledaily maximumreport only (ug/L)all year004I
Selenium, total recoverablemonthly averagereport only (lb/d)all year004I
Selenium, total recoverabledaily maximumreport only (lb/d)all year004I
Nickel, total recoverablemonthly averagereport only (ug/L)all year004I
Nickel, total recoverabledaily maximumreport only (ug/L)all year004I
Nickel, total recoverablemonthly averagereport only (lb/d)all year004I
Nickel, total recoverabledaily maximumreport only (lb/d)all year004I
Copper, total recoverabledaily maximumreport only (ug/L)all year004I
Copper, total recoverabledaily maximumreport only (lb/d)all year004I
Nitrogen, total [as N]daily maximumreport only (ug/L) (alert, not enforceable)all year004S
Phosphorus, total [as P]daily maximumreport only (ug/L) (alert, not enforceable)all year004S
Iron, total recoverabledaily maximum≤ 1 mg/L (alert, not enforceable)all year004S
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD) (alert, not enforceable)all year004S
Nitrogen, ammonia total [as NH4]daily maximumreport only (ug/L) (alert, not enforceable)all year004S
Nitrogen, total [as N]daily maximumreport only (ug/L) (alert, not enforceable)all year005S
Nitrogen, total [as N]daily maximumreport only (ug/L) (alert, not enforceable)all year005S
Phosphorus, total [as P]daily maximumreport only (ug/L) (alert, not enforceable)all year005S
Phosphorus, total [as P]daily maximumreport only (ug/L) (alert, not enforceable)all year005S
Iron, total recoverabledaily maximum≤ 1 mg/L (alert, not enforceable)all year005S
Iron, total recoverabledaily maximum≤ 1 mg/L (alert, not enforceable)all year005S
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD) (alert, not enforceable)all year005S
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD) (alert, not enforceable)all year005S
Nitrogen, ammonia total [as NH4]daily maximumreport only (ug/L) (alert, not enforceable)all year005S
Nitrogen, ammonia total [as NH4]daily maximumreport only (ug/L) (alert, not enforceable)all year005S
Nitrogen, total [as N]daily maximumreport only (ug/L) (alert, not enforceable)all year006S
Nitrogen, total [as N]daily maximumreport only (ug/L) (alert, not enforceable)all year006S
Phosphorus, total [as P]daily maximumreport only (ug/L) (alert, not enforceable)all year006S
Phosphorus, total [as P]daily maximumreport only (ug/L) (alert, not enforceable)all year006S
Iron, total recoverabledaily maximum≤ 1 mg/L (alert, not enforceable)all year006S
Iron, total recoverabledaily maximum≤ 1 mg/L (alert, not enforceable)all year006S
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD) (alert, not enforceable)all year006S
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD) (alert, not enforceable)all year006S
Nitrogen, ammonia total [as NH4]daily maximumreport only (ug/L) (alert, not enforceable)all year006S
Nitrogen, ammonia total [as NH4]daily maximumreport only (ug/L) (alert, not enforceable)all year006S
Nitrogen, total [as N]daily maximumreport only (ug/L) (alert, not enforceable)all year007S
Phosphorus, total [as P]daily maximumreport only (ug/L) (alert, not enforceable)all year007S
Iron, total recoverabledaily maximum≤ 1 mg/L (alert, not enforceable)all year007S
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD) (alert, not enforceable)all year007S
Nitrogen, ammonia total [as NH4]daily maximumreport only (ug/L) (alert, not enforceable)all year007S
Nitrogen, total [as N]daily maximumreport only (ug/L) (alert, not enforceable)all year008S
Nitrogen, total [as N]daily maximumreport only (ug/L) (alert, not enforceable)all year008S
Phosphorus, total [as P]daily maximumreport only (ug/L) (alert, not enforceable)all year008S
Phosphorus, total [as P]daily maximumreport only (ug/L) (alert, not enforceable)all year008S
Iron, total recoverabledaily maximum≤ 1 mg/L (alert, not enforceable)all year008S
Iron, total recoverabledaily maximum≤ 1 mg/L (alert, not enforceable)all year008S
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD) (alert, not enforceable)all year008S
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD) (alert, not enforceable)all year008S
Nitrogen, ammonia total [as NH4]daily maximumreport only (ug/L) (alert, not enforceable)all year008S
Nitrogen, ammonia total [as NH4]daily maximumreport only (ug/L) (alert, not enforceable)all year008S
Nitrogen, total [as N]daily maximumreport only (ug/L) (alert, not enforceable)all year009S
Phosphorus, total [as P]daily maximumreport only (ug/L) (alert, not enforceable)all year009S
Iron, total recoverabledaily maximum≤ 1 mg/L (alert, not enforceable)all year009S
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD) (alert, not enforceable)all year009S
Nitrogen, ammonia total [as NH4]daily maximumreport only (ug/L) (alert, not enforceable)all year009S
Nitrogen, total [as N]daily maximumreport only (ug/L) (alert, not enforceable)all year010S
Phosphorus, total [as P]daily maximumreport only (ug/L) (alert, not enforceable)all year010S
Iron, total recoverabledaily maximum≤ 1 mg/L (alert, not enforceable)all year010S
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD) (alert, not enforceable)all year010S
Nitrogen, ammonia total [as NH4]daily maximumreport only (ug/L) (alert, not enforceable)all year010S
Nitrogen, total [as N]daily maximumreport only (ug/L) (alert, not enforceable)all year012S
Phosphorus, total [as P]daily maximumreport only (ug/L) (alert, not enforceable)all year012S
Iron, total recoverabledaily maximum≤ 1 mg/L (alert, not enforceable)all year012S
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD) (alert, not enforceable)all year012S
Nitrogen, ammonia total [as NH4]daily maximumreport only (ug/L) (alert, not enforceable)all year012S
Nitrogen, total [as N]daily maximumreport only (ug/L) (alert, not enforceable)all year013S
Phosphorus, total [as P]daily maximumreport only (ug/L) (alert, not enforceable)all year013S
Iron, total recoverabledaily maximum≤ 1 mg/L (alert, not enforceable)all year013S
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD) (alert, not enforceable)all year013S
Nitrogen, ammonia total [as NH4]daily maximumreport only (ug/L) (alert, not enforceable)all year013S
Nitrogen, total [as N]daily maximumreport only (ug/L) (alert, not enforceable)all year014S
Phosphorus, total [as P]daily maximumreport only (ug/L) (alert, not enforceable)all year014S
Iron, total recoverabledaily maximum≤ 1 mg/L (alert, not enforceable)all year014S
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD) (alert, not enforceable)all year014S
Nitrogen, ammonia total [as NH4]daily maximumreport only (ug/L) (alert, not enforceable)all year014S
Nitrogen, total [as N]daily maximumreport only (ug/L) (alert, not enforceable)all year015S
Phosphorus, total [as P]daily maximumreport only (ug/L) (alert, not enforceable)all year015S
Iron, total recoverabledaily maximum≤ 1 mg/L (alert, not enforceable)all year015S
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD) (alert, not enforceable)all year015S
Nitrogen, ammonia total [as NH4]daily maximumreport only (ug/L) (alert, not enforceable)all year015S
Nitrogen, total [as N]daily maximumreport only (ug/L) (alert, not enforceable)all year016S
Phosphorus, total [as P]daily maximumreport only (ug/L) (alert, not enforceable)all year016S
Iron, total recoverabledaily maximum≤ 1 mg/L (alert, not enforceable)all year016S
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD) (alert, not enforceable)all year016S
Nitrogen, ammonia total [as NH4]daily maximumreport only (ug/L) (alert, not enforceable)all year016S
Nitrogen, total [as N]daily maximumreport only (ug/L) (alert, not enforceable)all year017S
Phosphorus, total [as P]daily maximumreport only (ug/L) (alert, not enforceable)all year017S
Iron, total recoverabledaily maximum≤ 1 mg/L (alert, not enforceable)all year017S
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD) (alert, not enforceable)all year017S
Nitrogen, ammonia total [as NH4]daily maximumreport only (ug/L) (alert, not enforceable)all year017S
Nitrogen, total [as N]daily maximumreport only (ug/L) (alert, not enforceable)all year018S
Phosphorus, total [as P]daily maximumreport only (ug/L) (alert, not enforceable)all year018S
Iron, total recoverabledaily maximum≤ 1 mg/L (alert, not enforceable)all year018S
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD) (alert, not enforceable)all year018S
Nitrogen, ammonia total [as NH4]daily maximumreport only (ug/L) (alert, not enforceable)all year018S
Nitrogen, total [as N]daily maximumreport only (ug/L) (alert, not enforceable)all year019S
Phosphorus, total [as P]daily maximumreport only (ug/L) (alert, not enforceable)all year019S
Iron, total recoverabledaily maximum≤ 1 mg/L (alert, not enforceable)all year019S
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD) (alert, not enforceable)all year019S
Nitrogen, ammonia total [as NH4]daily maximumreport only (ug/L) (alert, not enforceable)all year019S
Nitrogen, total [as N]daily maximumreport only (ug/L) (alert, not enforceable)all year020S
Phosphorus, total [as P]daily maximumreport only (ug/L) (alert, not enforceable)all year020S
Iron, total recoverabledaily maximum≤ 1 mg/L (alert, not enforceable)all year020S
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD) (alert, not enforceable)all year020S
Nitrogen, ammonia total [as NH4]daily maximumreport only (ug/L) (alert, not enforceable)all year020S
Nitrogen, total [as N]daily maximumreport only (ug/L) (alert, not enforceable)all year021S
Phosphorus, total [as P]daily maximumreport only (ug/L) (alert, not enforceable)all year021S
Iron, total recoverabledaily maximum≤ 1 mg/L (alert, not enforceable)all year021S
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD) (alert, not enforceable)all year021S
Nitrogen, ammonia total [as NH4]daily maximumreport only (ug/L) (alert, not enforceable)all year021S
Nitrogen, total [as N]daily maximumreport only (ug/L) (alert, not enforceable)all year022S
Phosphorus, total [as P]daily maximumreport only (ug/L) (alert, not enforceable)all year022S
Iron, total recoverabledaily maximum≤ 1 mg/L (alert, not enforceable)all year022S
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD) (alert, not enforceable)all year022S
Nitrogen, ammonia total [as NH4]daily maximumreport only (ug/L) (alert, not enforceable)all year022S
Nitrogen, total [as N]daily maximumreport only (ug/L) (alert, not enforceable)all year023S
Phosphorus, total [as P]daily maximumreport only (ug/L) (alert, not enforceable)all year023S
Iron, total recoverabledaily maximum≤ 1 mg/L (alert, not enforceable)all year023S
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD) (alert, not enforceable)all year023S
Nitrogen, ammonia total [as NH4]daily maximumreport only (ug/L) (alert, not enforceable)all year023S
Nitrogen, total [as N]daily maximumreport only (ug/L) (alert, not enforceable)all year024S
Phosphorus, total [as P]daily maximumreport only (ug/L) (alert, not enforceable)all year024S
Iron, total recoverabledaily maximum≤ 1 mg/L (alert, not enforceable)all year024S
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD) (alert, not enforceable)all year024S
Nitrogen, ammonia total [as NH4]daily maximumreport only (ug/L) (alert, not enforceable)all year024S
pHminimum≥ 6 SUall yearLVW
pHmaximum≤ 9 SUall yearLVW
Solids, total suspendedmonthly average≤ 30 mg/Lall yearLVW
Solids, total suspendeddaily maximum≤ 100 mg/Lall yearLVW
Solids, total suspendedmonthly average≤ 88 lb/dall yearLVW
Solids, total suspendeddaily maximum≤ 292 lb/dall yearLVW
Oil and greasemonthly average≤ 15 mg/Lall yearLVW
Oil and greasedaily maximum≤ 20 mg/Lall yearLVW
Oil and greasemonthly average≤ 44 lb/dall yearLVW
Oil and greasedaily maximum≤ 58 lb/dall yearLVW
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all yearLVW
Flow, in conduit or thru treatment plantdaily maximum≤ .35 MGDall yearLVW
pHminimum≥ 6 SUall yearMCW
pHmaximum≤ 9 SUall yearMCW
Solids, total suspendedmonthly average≤ 30 mg/Lall yearMCW
Solids, total suspendeddaily maximum≤ 100 mg/Lall yearMCW
Solids, total suspendedmonthly average≤ 50 lb/dall yearMCW
Solids, total suspendeddaily maximum≤ 167 lb/dall yearMCW
Iron, total recoverablemonthly average≤ 1 mg/Lall yearMCW
Iron, total recoverabledaily maximum≤ 1 mg/Lall yearMCW
Iron, total recoverablemonthly average≤ 1.7 lb/dall yearMCW
Iron, total recoverabledaily maximum≤ 1.7 lb/dall yearMCW
Copper, total recoverablemonthly average≤ 1 mg/Lall yearMCW
Copper, total recoverabledaily maximum≤ 1 mg/Lall yearMCW
Copper, total recoverablemonthly average≤ 1.7 lb/dall yearMCW
Copper, total recoverabledaily maximum≤ 1.7 lb/dall yearMCW
Oil and greasemonthly average≤ 15 mg/Lall yearMCW
Oil and greasedaily maximum≤ 20 mg/Lall yearMCW
Oil and greasemonthly average≤ 25 lb/dall yearMCW
Oil and greasedaily maximum≤ 33 lb/dall yearMCW
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all yearMCW
Flow, in conduit or thru treatment plantdaily maximum≤ .2 MGDall yearMCW

How strict are these limits?

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

Same industry: the 4 Electric Services permits in Hawaii.

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