💧 ZIP Water Report

Capitol Water Corp

PWSID ID4010022 · Boise, Idaho · serves 9,000 people · groundwater source

F
Failing

PFAS test results (EPA UCMR 5)

ContaminantResultFederal limit (MCL)Sampled
PFNA 51 ppt 10 ppt 12/6/2023
PFNA 24 ppt 10 ppt 6/12/2023
PFOS 9.8 ppt 4 ppt 12/6/2023
PFOS 9.1 ppt 4 ppt 8/8/2023
PFNA 6.5 ppt 10 ppt 12/6/2023
PFOA 5.9 ppt 4 ppt 8/8/2023
PFOA 5.7 ppt 4 ppt 12/6/2023
PFHxS 5.5 ppt 10 ppt 8/8/2023
PFPeA 5.4 ppt — 12/6/2023
PFHxA 5.2 ppt — 12/6/2023
PFHxS 5.1 ppt 10 ppt 12/6/2023
PFNA 4.9 ppt 10 ppt 8/8/2023
PFPeA 4.8 ppt — 8/8/2023
PFHxA 4.6 ppt — 8/8/2023
PFHxS 4.6 ppt 10 ppt 8/8/2023
PFHxS 4.5 ppt 10 ppt 12/6/2023
PFOS 4.4 ppt 4 ppt 12/6/2023
PFOS 4.1 ppt 4 ppt 8/8/2023
PFBS 4 ppt — 8/8/2023
PFHxS 3.9 ppt 10 ppt 12/6/2023
PFBS 3.9 ppt — 12/6/2023

ppt = parts per trillion (ng/L). Rows highlighted red meet or exceed the 2024 federal limit.

Violation history

DateViolationTypeHealth-basedStatus
2025-09-02 Public Notice Other No Unaddressed
2025-04-01 Combined Uranium MCL Yes Resolved
2025-01-13 Public Notice Other No Resolved
2025-01-01 Combined Uranium MCL Yes Resolved
2025-01-01 Nitrate MR No Archived
2024-10-17 LEAD AND COPPER RULE REVISIONS TT Yes Resolved
2024-10-17 LEAD AND COPPER RULE REVISIONS RPT No Resolved
2023-01-01 Chlordane MR No Archived
2023-01-01 ETHYLENE DIBROMIDE MR No Archived
2023-01-01 1,2-DIBROMO-3-CHLOROPROPANE MR No Archived
2023-01-01 Total Polychlorinated Biphenyls (PCB) MR No Archived
2023-01-01 Pentachlorophenol MR No Archived
2023-01-01 Benzo(a)pyrene MR No Archived
2023-01-01 HEXACHLOROBENZENE MR No Archived
2023-01-01 2,4,5-TP MR No Archived
2023-01-01 2,4-D MR No Archived
2023-01-01 Heptachlor epoxide MR No Archived
2023-01-01 Heptachlor MR No Archived
2023-01-01 LASSO MR No Archived
2023-01-01 Atrazine MR No Archived
2023-01-01 Carbofuran MR No Archived
2023-01-01 Hexachlorocyclopentadiene MR No Archived
2023-01-01 Dinoseb MR No Archived
2023-01-01 Picloram MR No Archived
2023-01-01 Simazine MR No Archived
2023-01-01 OXAMYL MR No Archived
2023-01-01 Di(2-ethylhexyl) adipate MR No Archived
2023-01-01 Glyphosate MR No Archived
2023-01-01 Endothall MR No Archived
2023-01-01 Diquat MR No Archived
2023-01-01 Dalapon MR No Archived
2023-01-01 Toxaphene MR No Archived
2023-01-01 Methoxychlor MR No Archived
2023-01-01 BHC-GAMMA MR No Archived
2023-01-01 Endrin MR No Archived
2023-01-01 Endrin MR No Archived
2023-01-01 BHC-GAMMA MR No Archived
2023-01-01 Methoxychlor MR No Archived
2023-01-01 Toxaphene MR No Archived
2023-01-01 Dalapon MR No Archived
2023-01-01 Diquat MR No Archived
2023-01-01 Endothall MR No Archived
2023-01-01 Glyphosate MR No Archived
2023-01-01 Di(2-ethylhexyl) adipate MR No Archived
2023-01-01 OXAMYL MR No Archived
2023-01-01 Simazine MR No Archived
2023-01-01 Di(2-ethylhexyl) phthalate MR No Archived
2023-01-01 Picloram MR No Archived
2023-01-01 Dinoseb MR No Archived
2023-01-01 Hexachlorocyclopentadiene MR No Archived
2023-01-01 Carbofuran MR No Archived
2023-01-01 Atrazine MR No Archived
2023-01-01 LASSO MR No Archived
2023-01-01 Heptachlor MR No Archived
2023-01-01 Heptachlor epoxide MR No Archived
2023-01-01 2,4-D MR No Archived
2023-01-01 2,4,5-TP MR No Archived
2023-01-01 HEXACHLOROBENZENE MR No Archived
2023-01-01 Benzo(a)pyrene MR No Archived
2023-01-01 Pentachlorophenol MR No Archived
2023-01-01 Total Polychlorinated Biphenyls (PCB) MR No Archived
2023-01-01 1,2-DIBROMO-3-CHLOROPROPANE MR No Archived
2023-01-01 ETHYLENE DIBROMIDE MR No Archived
2023-01-01 Chlordane MR No Archived
2023-01-01 Endrin MR No Archived
2023-01-01 BHC-GAMMA MR No Archived
2023-01-01 Methoxychlor MR No Archived
2023-01-01 Toxaphene MR No Archived
2023-01-01 Dalapon MR No Archived
2023-01-01 Diquat MR No Archived
2023-01-01 Endothall MR No Archived
2023-01-01 Glyphosate MR No Archived
2023-01-01 Di(2-ethylhexyl) adipate MR No Archived
2023-01-01 OXAMYL MR No Archived
2023-01-01 Simazine MR No Archived
2023-01-01 Di(2-ethylhexyl) phthalate MR No Archived
2023-01-01 Picloram MR No Archived
2023-01-01 Dinoseb MR No Archived
2023-01-01 Hexachlorocyclopentadiene MR No Archived
2023-01-01 Carbofuran MR No Archived
2023-01-01 Atrazine MR No Archived
2023-01-01 LASSO MR No Archived
2023-01-01 Heptachlor MR No Archived
2023-01-01 Heptachlor epoxide MR No Archived
2023-01-01 2,4-D MR No Archived
2023-01-01 2,4,5-TP MR No Archived
2023-01-01 HEXACHLOROBENZENE MR No Archived
2023-01-01 Benzo(a)pyrene MR No Archived
2023-01-01 Pentachlorophenol MR No Archived
2023-01-01 Total Polychlorinated Biphenyls (PCB) MR No Archived
2023-01-01 1,2-DIBROMO-3-CHLOROPROPANE MR No Archived
2023-01-01 ETHYLENE DIBROMIDE MR No Archived
2023-01-01 Chlordane MR No Archived
2023-01-01 Endrin MR No Archived
2023-01-01 BHC-GAMMA MR No Archived
2023-01-01 Methoxychlor MR No Archived
2023-01-01 Toxaphene MR No Archived
2023-01-01 Dalapon MR No Archived
2023-01-01 Diquat MR No Archived
2023-01-01 Endothall MR No Archived

ZIP codes served

83704