Mountain Home Air Force Base

Published drinking-water records and contacts for Mountain Home Air Force Base. System ID4200054. Review sources and dates; not a real-time water assessment.

System ID: ID4200054
State or territory: ID
Published population served: 7500
System type (source code): CWS

Published records and dates

PFAS / lithium (EPA UCMR 5): 180 — 2023-04-18 – 2023-12-06
Lead and copper monitoring summaries: 26 — 1992-07-01 – 2028-12-31
Idaho selected chemical sample panels: 5 — 2026-02-12 – 2026-09-24

Missing records here do not mean the provider did not test. Published records are not a real-time assessment of your tap water.

Published testing results

Selected recent records are shown below. Different sampling locations and dates are not interchangeable. These excerpts are not a complete testing history.

“<” means below the stated reporting limit, not zero. A reported measurement alone is not a safety verdict. Read an example

EPA UCMR 5 — most recent imported sample per substance
Substance	Published result	Reporting limit	Sample date	Sampling location
11Cl-PF3OUdS	< 0.005 µg/L	0.005 µg/L	2023-10-25	MOUNTAIN HOME AIR FORCE BASE / WELL13
4:2 FTS	< 0.003 µg/L	0.003 µg/L	2023-10-25	MOUNTAIN HOME AIR FORCE BASE / WELL14
6:2 FTS	< 0.005 µg/L	0.005 µg/L	2023-10-25	MOUNTAIN HOME AIR FORCE BASE / WELL2
8:2 FTS	< 0.005 µg/L	0.005 µg/L	2023-10-25	MOUNTAIN HOME AIR FORCE BASE / WELL13
9Cl-PF3ONS	< 0.002 µg/L	0.002 µg/L	2023-10-25	MOUNTAIN HOME AIR FORCE BASE / WELL14
ADONA	< 0.003 µg/L	0.003 µg/L	2023-10-25	MOUNTAIN HOME AIR FORCE BASE / WELL13
HFPO-DA	< 0.005 µg/L	0.005 µg/L	2023-10-25	MOUNTAIN HOME AIR FORCE BASE / WELL13
NEtFOSAA	< 0.005 µg/L	0.005 µg/L	2023-12-06	MOUNTAIN HOME AIR FORCE BASE / WELL14
NFDHA	< 0.02 µg/L	0.02 µg/L	2023-10-25	MOUNTAIN HOME AIR FORCE BASE / WELL2
NMeFOSAA	< 0.006 µg/L	0.006 µg/L	2023-12-06	MOUNTAIN HOME AIR FORCE BASE / WELL13
PFBA	< 0.005 µg/L	0.005 µg/L	2023-10-25	MOUNTAIN HOME AIR FORCE BASE / WELL2
PFBS	0.0048 µg/L	0.003 µg/L	2023-10-25	MOUNTAIN HOME AIR FORCE BASE / WELL2
PFDA	< 0.003 µg/L	0.003 µg/L	2023-10-25	MOUNTAIN HOME AIR FORCE BASE / WELL14
PFDoA	< 0.003 µg/L	0.003 µg/L	2023-10-25	MOUNTAIN HOME AIR FORCE BASE / WELL14
PFEESA	< 0.003 µg/L	0.003 µg/L	2023-10-25	MOUNTAIN HOME AIR FORCE BASE / WELL13
PFHpA	< 0.003 µg/L	0.003 µg/L	2023-10-25	MOUNTAIN HOME AIR FORCE BASE / WELL13
PFHpS	< 0.003 µg/L	0.003 µg/L	2023-10-25	MOUNTAIN HOME AIR FORCE BASE / WELL2
PFHxA	0.013 µg/L	0.003 µg/L	2023-10-25	MOUNTAIN HOME AIR FORCE BASE / WELL2
PFHxS	0.01 µg/L	0.003 µg/L	2023-10-25	MOUNTAIN HOME AIR FORCE BASE / WELL2
PFMBA	< 0.003 µg/L	0.003 µg/L	2023-10-25	MOUNTAIN HOME AIR FORCE BASE / WELL14
PFMPA	< 0.004 µg/L	0.004 µg/L	2023-10-25	MOUNTAIN HOME AIR FORCE BASE / WELL14
PFNA	< 0.004 µg/L	0.004 µg/L	2023-10-25	MOUNTAIN HOME AIR FORCE BASE / WELL2
PFOA	< 0.004 µg/L	0.004 µg/L	2023-10-25	MOUNTAIN HOME AIR FORCE BASE / WELL14
PFOS	< 0.004 µg/L	0.004 µg/L	2023-10-25	MOUNTAIN HOME AIR FORCE BASE / WELL14
PFPeA	< 0.003 µg/L	0.003 µg/L	2023-10-25	MOUNTAIN HOME AIR FORCE BASE / WELL14
PFPeS	< 0.004 µg/L	0.004 µg/L	2023-10-25	MOUNTAIN HOME AIR FORCE BASE / WELL13
PFTA	< 0.008 µg/L	0.008 µg/L	2023-12-06	MOUNTAIN HOME AIR FORCE BASE / WELL13
PFTrDA	< 0.007 µg/L	0.007 µg/L	2023-12-06	MOUNTAIN HOME AIR FORCE BASE / WELL14
PFUnA	< 0.002 µg/L	0.002 µg/L	2023-10-25	MOUNTAIN HOME AIR FORCE BASE / WELL14
lithium	< 9 µg/L	9 µg/L	2023-10-25	MOUNTAIN HOME AIR FORCE BASE / WELL13

Download all EPA UCMR 5 records (CSV)

Lead and copper: 90th-percentile summaries

These describe a monitoring period across sampled locations, not the result at your home. How to read the 90th percentile

Eight most recent imported monitoring summaries
Substance	Published 90th percentile	Monitoring period	Source quarter
Lead (PB90)	0.004 mg/L	2026-01-01 – 2028-12-31	2026Q3
Lead (PB90)	0 mg/L	2023-01-01 – 2025-12-31	2026Q3
Lead (PB90)	0 mg/L	2022-07-01 – 2022-12-31	2026Q3
Lead (PB90)	0 mg/L	2022-01-01 – 2022-06-30	2026Q3
Lead (PB90)	0 mg/L	2021-01-01 – 2021-06-30	2026Q3
Lead (PB90)	0 mg/L	2020-07-01 – 2020-12-31	2026Q3
Lead (PB90)	0 mg/L	2020-01-01 – 2020-06-30	2026Q3
Lead (PB90)	0 mg/L	2019-07-01 – 2019-12-31	2026Q3

Twelve most recent imported state laboratory records
Substance	Published result	Sample date	Location / source
NITRATE	1.3 mg/L	2026-09-24	WELL #14 / Idaho selected chemical sample panels
NITRATE	18.8 mg/L	2026-09-24	WELL #12 / Idaho selected chemical sample panels
NITRATE	5.0 mg/L	2026-09-24	WELL #13 / Idaho selected chemical sample panels
NITRATE	11.4 mg/L	2026-06-25	WELL #12 / Idaho selected chemical sample panels
NITRATE	8.3 mg/L	2026-02-12	WELL #12 / Idaho selected chemical sample panels

State sampling points can include untreated water. Publisher qualifiers and units are retained; consult the full source notes before interpreting a record.

Download state records with source notes (CSV)

Published compliance history

197 imported records. Status is as recorded in the source; historical records are not current advisories. Missing records do not establish that no violations occurred.

Twenty most recent imported compliance records
Rule / record	Period	Recorded status	Health-based (EPA classification)	Source quarter
Lead and Copper Rule / Lead Consumer Notice	2025-12-30 – —	Resolved	No	2026Q3
Revised Total Coliform Rule / Monitoring, Routine (RTCR)	2024-08-01 – 2024-08-31	Resolved	No	2026Q3
Stage 1 Disinfectants and Disinfection Byproducts Rule / Monitoring and Reporting (DBP)	2024-08-01 – 2024-08-31	Resolved	No	2026Q3
Revised Total Coliform Rule / Monitoring, Routine (RTCR)	2022-03-01 – 2022-03-31	Resolved	No	2026Q3
Stage 1 Disinfectants and Disinfection Byproducts Rule / Monitoring and Reporting (DBP)	2022-01-01 – 2022-03-31	Resolved	No	2026Q3
Ground Water Rule / Monitoring, Source Water (GWR)	2021-11-11 – —	Resolved	No	2026Q3
Synthetic Organic Chemicals / Monitoring, Regular	2021-10-01 – 2021-12-31	Resolved	No	2026Q3
Synthetic Organic Chemicals / Monitoring, Regular	2021-10-01 – 2021-12-31	Resolved	No	2026Q3
Synthetic Organic Chemicals / Monitoring, Regular	2021-10-01 – 2021-12-31	Resolved	No	2026Q3
Synthetic Organic Chemicals / Monitoring, Regular	2021-10-01 – 2021-12-31	Resolved	No	2026Q3
Synthetic Organic Chemicals / Monitoring, Regular	2021-10-01 – 2021-12-31	Resolved	No	2026Q3
Synthetic Organic Chemicals / Monitoring, Regular	2021-10-01 – 2021-12-31	Resolved	No	2026Q3
Synthetic Organic Chemicals / Monitoring, Regular	2021-10-01 – 2021-12-31	Resolved	No	2026Q3
Synthetic Organic Chemicals / Monitoring, Regular	2021-10-01 – 2021-12-31	Resolved	No	2026Q3
Synthetic Organic Chemicals / Monitoring, Regular	2021-10-01 – 2021-12-31	Resolved	No	2026Q3
Synthetic Organic Chemicals / Monitoring, Regular	2021-10-01 – 2021-12-31	Resolved	No	2026Q3
Synthetic Organic Chemicals / Monitoring, Regular	2021-10-01 – 2021-12-31	Resolved	No	2026Q3
Synthetic Organic Chemicals / Monitoring, Regular	2021-10-01 – 2021-12-31	Resolved	No	2026Q3
Synthetic Organic Chemicals / Monitoring, Regular	2021-10-01 – 2021-12-31	Resolved	No	2026Q3
Synthetic Organic Chemicals / Monitoring, Regular	2021-10-01 – 2021-12-31	Resolved	No	2026Q3

Source dates and refresh checks

A refresh check is not a sample date. Publication periods, sample dates and checks are shown separately.

EPA SDWIS lead/copper summaries and service areas — source period: — – —; last checked: 2026-10-17
EPA SDWIS contacts and compliance records — source period: — – —; last checked: 2026-10-17
EPA UCMR 5 sample results — source period: 2023-01-03 – 2026-06-17; last checked: 2026-10-17
Idaho selected chemical sample panels — last successful check: 2026-10-12

Administrative contact (EPA filing)

Echeverria, Hodge: 208-828-1784

An administrative filing contact may not be a customer-service line. Confirm current contact details with the provider.

Official state resources · How to read these records