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POCATELLO CITY OF

Idaho — Community Water System — PWSID: ID6030043

System Information

PWSIDID6030043
System NamePOCATELLO CITY OF
System TypeCommunity Water System
Water SourceGround Water
Activity StatusActive
Owner TypeLocal
EPA Region10
Serves SchoolNo
WholesalerNo
First ReportedMar 13, 1980
Last ReportedDec 19, 2025

Location & Contact

StateIdaho
CityPOCATELLO
ZIP Code83205
AddressPO BOX 4169
OrganizationARMSTRONG, JUSTIN
Phone208-234-6174

Population & Service

Population Served58,231
Service Connections18,712

Drinking Water Violations (957)

This water system has 957 violations recorded in the EPA SDWIS database.

Begin Date End Date Contaminant Category Health-Based Major Measured Federal MCL State MCL Status Return to Compliance Rule
Apr 1, 2025 Apr 30, 2025 Chlorine MR No No — 4.0 mg/L — Archived Apr 30, 2025 Stage 1 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2025 Apr 30, 2025 Chlorine MR No No — 4.0 mg/L — Archived Apr 30, 2025 Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 9, 2023 — E. COLI MR No Yes — — — Resolved Oct 16, 2024 Ground Water Rule
Oct 9, 2023 — E. COLI MR No Yes — — — Resolved Oct 16, 2024 Ground Water Rule
Oct 9, 2023 — E. COLI MR No Yes — — — Resolved Oct 16, 2024 Ground Water Rule
Oct 1, 2021 Dec 31, 2021 Nitrate MCL Yes No 12 MG/L 10 mg/L 10 Resolved Dec 31, 2021 Nitrate Rule
Oct 1, 2021 Dec 31, 2021 Nitrate MCL Yes No 12 MG/L 10 mg/L 10 Resolved Dec 31, 2021 Nitrate Rule
Oct 1, 2021 Dec 31, 2021 Nitrate MCL Yes No 12 MG/L 10 mg/L 10 Resolved Dec 31, 2021 Nitrate Rule
Oct 1, 2021 Dec 31, 2021 Nitrate MCL Yes No 12 MG/L 10 mg/L 10 Resolved Dec 31, 2021 Nitrate Rule
Oct 1, 2021 Dec 31, 2021 Nitrate MCL Yes No 12 MG/L 10 mg/L 10 Resolved Dec 31, 2021 Nitrate Rule
Oct 1, 2021 Dec 31, 2021 Nitrate MCL Yes No 12 MG/L 10 mg/L 10 Resolved Dec 31, 2021 Nitrate Rule
Oct 1, 2021 Dec 31, 2021 Nitrate MCL Yes No 12 MG/L 10 mg/L 10 Resolved Dec 31, 2021 Nitrate Rule
Jan 1, 2017 Dec 31, 2019 Endrin MR No No — 0.002 mg/L — Archived Dec 31, 2019 Synthetic Organic Chemicals
Jan 1, 2017 Dec 31, 2019 Picloram MR No No — 0.5 mg/L — Archived Dec 31, 2019 Synthetic Organic Chemicals
Jan 1, 2017 Dec 31, 2019 Simazine MR No No — 0.004 mg/L — Archived Dec 31, 2019 Synthetic Organic Chemicals
Jan 1, 2017 Dec 31, 2019 HEXACHLOROBENZENE MR No No — 0.001 mg/L — Archived Dec 31, 2019 Synthetic Organic Chemicals
Jan 1, 2017 Dec 31, 2019 Simazine MR No No — 0.004 mg/L — Archived Dec 31, 2019 Synthetic Organic Chemicals
Jan 1, 2017 Dec 31, 2019 Simazine MR No No — 0.004 mg/L — Archived Dec 31, 2019 Synthetic Organic Chemicals
Jan 1, 2017 Dec 31, 2019 Endrin MR No No — 0.002 mg/L — Archived Dec 31, 2019 Synthetic Organic Chemicals
Jan 1, 2017 Dec 31, 2019 Di(2-ethylhexyl) adipate MR No No — 0.4 mg/L — Archived Dec 31, 2019 Synthetic Organic Chemicals
Jan 1, 2017 Dec 31, 2019 Glyphosate MR No No — 0.7 mg/L — Archived Dec 31, 2019 Synthetic Organic Chemicals
Jan 1, 2017 Dec 31, 2019 Toxaphene MR No No — 0.003 mg/L — Archived Dec 31, 2019 Synthetic Organic Chemicals
Jan 1, 2017 Dec 31, 2019 Toxaphene MR No No — 0.003 mg/L — Archived Dec 31, 2019 Synthetic Organic Chemicals
Jan 1, 2017 Dec 31, 2019 Dalapon MR No No — 0.2 mg/L — Archived Dec 31, 2019 Synthetic Organic Chemicals
Jan 1, 2017 Dec 31, 2019 Di(2-ethylhexyl) adipate MR No No — 0.4 mg/L — Archived Dec 31, 2019 Synthetic Organic Chemicals
Jan 1, 2017 Dec 31, 2019 Diquat MR No No — 0.02 mg/L — Archived Dec 31, 2019 Synthetic Organic Chemicals
Jan 1, 2017 Dec 31, 2019 Dalapon MR No No — 0.2 mg/L — Archived Dec 31, 2019 Synthetic Organic Chemicals
Jan 1, 2017 Dec 31, 2019 Diquat MR No No — 0.02 mg/L — Archived Dec 31, 2019 Synthetic Organic Chemicals
Jan 1, 2017 Dec 31, 2019 Diquat MR No No — 0.02 mg/L — Archived Dec 31, 2019 Synthetic Organic Chemicals
Jan 1, 2017 Dec 31, 2019 Glyphosate MR No No — 0.7 mg/L — Archived Dec 31, 2019 Synthetic Organic Chemicals
Jan 1, 2017 Dec 31, 2019 1,2-DIBROMO-3-CHLOROPROPANE MR No No — 0.0002 mg/L — Archived Dec 31, 2019 Synthetic Organic Chemicals
Jan 1, 2017 Dec 31, 2019 Heptachlor epoxide MR No No — 0.0002 mg/L — Archived Dec 31, 2019 Synthetic Organic Chemicals
Jan 1, 2017 Dec 31, 2019 Carbofuran MR No No — 0.04 mg/L — Archived Dec 31, 2019 Synthetic Organic Chemicals
Jan 1, 2017 Dec 31, 2019 Heptachlor epoxide MR No No — 0.0002 mg/L — Archived Dec 31, 2019 Synthetic Organic Chemicals
Jan 1, 2017 Dec 31, 2019 Heptachlor MR No No — 0.0004 mg/L — Archived Dec 31, 2019 Synthetic Organic Chemicals
Jan 1, 2017 Dec 31, 2019 LASSO MR No No — — — Archived Dec 31, 2019 Synthetic Organic Chemicals
Jan 1, 2017 Dec 31, 2019 Heptachlor MR No No — 0.0004 mg/L — Archived Dec 31, 2019 Synthetic Organic Chemicals
Jan 1, 2017 Dec 31, 2019 Dalapon MR No No — 0.2 mg/L — Archived Dec 31, 2019 Synthetic Organic Chemicals
Jan 1, 2017 Dec 31, 2019 Di(2-ethylhexyl) adipate MR No No — 0.4 mg/L — Archived Dec 31, 2019 Synthetic Organic Chemicals
Jan 1, 2017 Dec 31, 2019 Simazine MR No No — 0.004 mg/L — Archived Dec 31, 2019 Synthetic Organic Chemicals
Jan 1, 2017 Dec 31, 2019 Diquat MR No No — 0.02 mg/L — Archived Dec 31, 2019 Synthetic Organic Chemicals
Jan 1, 2017 Dec 31, 2019 1,2-DIBROMO-3-CHLOROPROPANE MR No No — 0.0002 mg/L — Archived Dec 31, 2019 Synthetic Organic Chemicals
Jan 1, 2017 Dec 31, 2019 ETHYLENE DIBROMIDE MR No No — 0.00005 mg/L — Archived Dec 31, 2019 Synthetic Organic Chemicals
Jan 1, 2017 Dec 31, 2019 ETHYLENE DIBROMIDE MR No No — 0.00005 mg/L — Archived Dec 31, 2019 Synthetic Organic Chemicals
Jan 1, 2017 Dec 31, 2019 Endrin MR No No — 0.002 mg/L — Archived Dec 31, 2019 Synthetic Organic Chemicals
Jan 1, 2017 Dec 31, 2019 Methoxychlor MR No No — 0.04 mg/L — Archived Dec 31, 2019 Synthetic Organic Chemicals
Jan 1, 2017 Dec 31, 2019 Methoxychlor MR No No — 0.04 mg/L — Archived Dec 31, 2019 Synthetic Organic Chemicals
Jan 1, 2017 Dec 31, 2019 Carbofuran MR No No — 0.04 mg/L — Archived Dec 31, 2019 Synthetic Organic Chemicals
Jan 1, 2017 Dec 31, 2019 Dalapon MR No No — 0.2 mg/L — Archived Dec 31, 2019 Synthetic Organic Chemicals
Jan 1, 2017 Dec 31, 2019 Di(2-ethylhexyl) adipate MR No No — 0.4 mg/L — Archived Dec 31, 2019 Synthetic Organic Chemicals

About This Water System

Public water system data comes from the EPA Safe Drinking Water Information System (SDWIS). Systems with violations must notify customers. Contact your water utility for the latest annual water quality report.

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