Mountain Home Air Force Base water quality
1 contaminant above a federal limit. hardness not in the latest CCR.
ID4200054. Data through 2026-06-25. DEQ record.
What's in it
Nitrate (as N)
Above limitEPA: infants below the age of six months who drink water containing nitrate in excess of the MCL could become seriously ill and, if untreated, may die.
Aquasana OptimH2O Reverse Osmosis + Claryum is certified to reduce it.
PFHxS
ElevatedAquasana OptimH2O Reverse Osmosis + Claryum: manufacturer-reported, not certified.
PFBS
ElevatedAquasana OptimH2O Reverse Osmosis + Claryum: manufacturer-reported, not certified.
9 other contaminants tested, not detected or well below the limit
Copper 0.07ppm Haloacetic Acids (HAA5) 3.5ppb HFPO-DA (GenX) ND Lead 4.0ppb PFNA ND PFOA ND PFOS ND Radium 226 + 228 ND Total Trihalomethanes 13.1ppb
Filters that match
Aquasana OptimH2O Reverse Osmosis + Claryum
under sink ro · diy
- Nitrate (as N)removes it, NSF or WQA certified
- PFBSremoves it, per manufacturer testing
- PFHxSremoves it, per manufacturer testing
Detections ranked by share of the limitevery Tier 1 detection, highest first
Bar length is the highest result in the last 36 months as a share of the federal limit (MCL, or action level for lead and copper). The dark tick marks the limit. Gross alpha is compared after subtracting uranium, as DEQ does for compliance.
Aesthetic and unregulated
Taste, odor, staining or scale, not health limits. Bars use the EPA secondary standard where one exists.
Full contaminants reporthighest, latest, limit, trend, last sample
| Contaminant | Highest, 36 mo | Federal limit | Share of limit | Status | Trend | Last sample |
|---|---|---|---|---|---|---|
| Copper 90th percentile at home taps note | 0.07ppm latest 0.02ppm | 1.30ppm AL | Detected | 2026-09-14 | ||
| Haloacetic Acids (HAA5) | 3.5ppb | 60.0ppb MCL | Detected | 2025-08-19 | ||
| HFPO-DA (GenX) | ND | 10.0ppt MCL | Not detected | 2023-10-25 EPA study | ||
| Lead 90th percentile at home taps note | 4.0ppb | 15.0ppb AL | Detected | 2026-09-14 | ||
| Nitrate (as N) | 18.40ppm latest 11.40ppm | 10.00ppm MCL | Above limit | 2026-06-25 | ||
| PFBS | 4.8ppt | none | no federal limit | Elevated | 2023-10-25 EPA study | |
| PFHxS | 10.0ppt | 10.0ppt MCL | Elevated | 2023-10-25 EPA study | ||
| PFNA | ND | 10.0ppt MCL | Not detected | 2023-10-25 EPA study | ||
| PFOA | ND | 4.0ppt MCL | Not detected | 2023-10-25 EPA study | ||
| PFOS | ND | 4.0ppt MCL | Not detected | 2023-10-25 EPA study | ||
| Radium 226 + 228 | ND | 5.00pCi/L MCL | Not detected | 2025-10-30 | ||
| Total Trihalomethanes | 13.1ppb latest 9.6ppb | 80.0ppb MCL | Detected | 2025-08-19 |
- Copper: 90th percentile of samples taken at customer taps. Results depend on the home's plumbing.
- Lead: 90th percentile of samples taken at customer taps. Results depend on the home's plumbing.
ppb = parts per billion (µg/L), ppm = parts per million (mg/L), ppt = parts per trillion. ND = not detected above the lab's reporting limit. MCL = federal maximum contaminant level; AL = action level for lead and copper (90th percentile of home taps); aesthetic = secondary standard for taste, odor or staining, not health. Bars show the highest result in 36 months as a share of the limit.
1 other regulated contaminants tested
| Contaminant | 36 mo max | Limit | Status | Last sample |
|---|---|---|---|---|
| Lithium | ND | none | Not detected | 2023-10-25 |
Hardness
Hardness is not reported in the latest CCR. Hardness not reported for this system; softener sizing uses a regional default of 11.7 gpg until a CCR value is reviewed.
See also Mountain Home water hardness.
Track record177 violations on record, 14 health-based
✓ no violation recorded n monitoring or reporting only n includes a health-based violation ? outside the loaded record
Health-based violations
| Period | What happened | Contaminant | Rule | Status |
|---|---|---|---|---|
| 2021-01-01 to 2021-03-31 | Maximum contaminant level exceeded (Single sample MCL exceeded) | Nitrate (as N) | Nitrates | resolved 2021-08-13 |
| 2020-10-01 to 2020-12-31 | Maximum contaminant level exceeded (Single sample MCL exceeded) | Nitrate (as N) | Nitrates | resolved 2021-08-13 |
| 2020-07-01 to 2020-09-30 | Maximum contaminant level exceeded (Average MCL exceeded) | Nitrate (as N) | Nitrates | resolved 2021-08-13 |
| 2020-04-01 to 2020-06-30 | Maximum contaminant level exceeded (Average MCL exceeded) | Nitrate (as N) | Nitrates | resolved 2021-08-13 |
| 2020-04-01 to 2020-06-30 | Maximum contaminant level exceeded (Average MCL exceeded) | Nitrate (as N) | Nitrates | resolved 2021-08-13 |
| 2020-01-01 to 2020-03-31 | Maximum contaminant level exceeded (Average MCL exceeded) | Nitrate (as N) | Nitrates | resolved 2021-11-30 |
| 2019-10-01 to 2019-12-31 | Maximum contaminant level exceeded (Single sample MCL exceeded) | Nitrate (as N) | Nitrates | resolved 2021-08-13 |
| 2019-07-01 to 2019-09-30 | Maximum contaminant level exceeded (Average MCL exceeded) | Nitrate (as N) | Nitrates | resolved 2021-08-13 |
| 2019-07-01 to 2019-09-30 | Maximum contaminant level exceeded (Single sample MCL exceeded) | Nitrate (as N) | Nitrates | resolved 2021-08-13 |
| 2018-10-01 to 2018-12-31 | Maximum contaminant level exceeded (Single sample MCL exceeded) | Nitrate (as N) | Nitrates | resolved 2021-08-13 |
| 2018-07-01 to 2018-09-30 | Maximum contaminant level exceeded (Average MCL exceeded) | Nitrate (as N) | Nitrates | resolved 2021-08-13 |
| 2017-10-01 to 2017-12-31 | Maximum contaminant level exceeded (Average MCL exceeded) | Nitrate (as N) | Nitrates | resolved 2021-08-13 |
| 2017-07-01 to 2017-09-30 | Maximum contaminant level exceeded (Single sample MCL exceeded) | Nitrate (as N) | Nitrates | resolved 2021-08-13 |
| 2016-10-01 to 2016-12-31 | Maximum contaminant level exceeded (Average MCL exceeded) | Nitrate (as N) | Nitrates | resolved 2021-11-30 |
Monitoring and reporting violations (163)
A required sample or report was late or missing. These do not mean a contaminant was found, but a system that skips monitoring has gaps in its record.
| Year | Rule | Count | Detail |
|---|---|---|---|
| 2025 | Lead and Copper Rule | 1 | Lead service line replacement (LCR) |
| 2024 | Stage 1 Disinfectants and Disinfection Byproducts Rule | 1 | Monitoring and reporting (DBP) · Chlorine (residual) |
| 2024 | Revised Total Coliform Rule | 1 | Monitoring, routine (RTCR) |
| 2022 | Stage 1 Disinfectants and Disinfection Byproducts Rule | 1 | Monitoring and reporting (DBP) · Chlorine (residual) |
| 2022 | Revised Total Coliform Rule | 1 | Monitoring, routine (RTCR) |
| 2021 | Volatile Organic Chemicals | 42 | Routine monitoring, major · Benzene, Tetrachloroethylene, Trichloroethylene |
| 2021 | Synthetic Organic Chemicals | 58 | Routine monitoring, major · 1,2-Dibromo-3-chloropropane, Atrazine |
| 2021 | Radionuclides | 4 | Routine monitoring, major · Gross Alpha, Radium 226 + 228, Uranium |
| 2021 | Ground Water Rule | 1 | Monitoring, routine major (TCR) · E. coli |
| 2020 | Volatile Organic Chemicals | 21 | Routine monitoring, major · Benzene, Tetrachloroethylene, Trichloroethylene |
| 2020 | Synthetic Organic Chemicals | 29 | Routine monitoring, major · 1,2-Dibromo-3-chloropropane, Atrazine |
| 2018 | Ground Water Rule | 1 | Monitoring, routine major (TCR) · E. coli |
| 2017 | Radionuclides | 2 | Routine monitoring, major · Gross Alpha |
Lead and copper at the tap90th percentile of sampled homes against the action level
90th percentile of samples taken at customer taps. Results depend on the home's plumbing. Results are from sampled homes in this system, not from your tap. Home plumbing can add lead and copper. First-draw samples run higher than flushed ones.
90th percentile of samples taken at customer taps. Results depend on the home's plumbing. Results are from sampled homes in this system, not from your tap. Home plumbing can add lead and copper. First-draw samples run higher than flushed ones.
Where the water comes from4 active wells
4 active wells, and 4 treatment points on record (SDWIS counts each chlorination or filtration point as a treatment plant).
WELL #12: Susceptibility: ioc moderate, voc high (auto), soc moderate, microbial moderate.
Source water assessment susceptibility: final map[IOC:Moderate Microbials:Moderate SOC:Moderate VOC:Auto High]; hydrologic sensitivity H; pci land use map[IOC:M Microbials:M SOC:M VOC:M]; system construction M;
Source names (4)
WELL #12, WELL #13, WELL #14, WELL #2
Every match, by categorytop three per category
We may earn a commission if you buy through these links. Rankings come from the matching engine (certification + flagged contaminants + annual cost), not from who pays more. How we earn money. As an Amazon Associate we earn from qualifying purchases. Prices are not shown; Amazon sets them on its site.
Drinking water
Under sink, pitcher, or faucet. Treats the water you drink and cook with.
Aquasana OptimH2O Reverse Osmosis + Claryum
Certified for nitrate, lead, and total trihalomethanes (NSF/ANSI 58, NSF/ANSI 53); manufacturer-reported for PFHxS and PFBS.
Plumber recommended if you are not comfortable with a drain saddle and a tank. Not a whole-house solution.
PUR Basic Vertical Faucet Mount Filter System
Certified for PFHxS, PFBS, and lead (NSF/ANSI 53). Does not address nitrate.
DIY. No plumbing.
Clearly Filtered Water Pitcher
Certified for lead, total trihalomethanes, and haloacetic acids (NSF/ANSI 53); manufacturer-reported for nitrate, PFHxS, and PFBS.
DIY. No plumbing.
Whole house
Installed where water enters the house. For fixtures, laundry and showers.
Aquasana Rhino EQ-1000 Whole House Filter (1,000,000 gallons)
Manufacturer-reported reduction for total trihalomethanes. Does not address nitrate, PFHxS, and PFBS.
Plumber recommended if you are not comfortable with this install.
Express Water WH300SCKS 3-Stage Heavy Metal Whole House Filter (Sediment, KDF, Carbon)
Manufacturer-reported reduction for lead. Does not address nitrate, PFHxS, and PFBS.
Plumber recommended if you are not comfortable with this install.
Sprite High Output 2 Universal Shower Filter with 3-Setting Shower Head (HO2-WH-M)
Does not address nitrate, PFHxS, and PFBS.
DIY. No plumbing.
Softener or conditioner
Worth it at 7 grains per gallon or more.
Aquasure Serene Lite 650K Salt-Free Water Conditioner with Triple Purpose Pre-Filter
Does not address nitrate, PFHxS, and PFBS.
Plumber recommended if you are not comfortable with this install.
Whirlpool WHES30E 30,000 Grain Water Softener
Does not address nitrate, PFHxS, and PFBS.
DIY if you are comfortable with this install.
Whirlpool WHES40E 40,000 Grain Water Softener
Does not address nitrate, PFHxS, and PFBS.
DIY if you are comfortable with this install.
Questions about Mountain Home Air Force Base
Is Mountain Home Air Force Base tap water safe to drink?
In the last 36 months at least one result for Mountain Home Air Force Base was above a federal limit: Nitrate (as N). A single high sample is not always a violation because compliance is often judged on a running average; the violations section shows what EPA recorded. Results reflect the system's sampling points, not the plumbing in any one home.
Is Mountain Home Air Force Base water hard?
Hardness has not been reported for Mountain Home Air Force Base in a reviewed Consumer Confidence Report yet. The softener sizing widget uses a labelled county default until a report is reviewed.
Is Mountain Home Air Force Base water fluoridated?
No fluoride result in the last 36 months.
Where does Mountain Home Air Force Base water come from?
Mountain Home Air Force Base draws from 4 active wells with 4 treatment plants on record. Source and treatment details are listed above.
What filter fits Mountain Home Air Force Base water?
For drinking water the matching engine ranks Aquasana OptimH2O Reverse Osmosis + Claryum first for this profile, based on certified reduction claims for the contaminants flagged above. See the filters section for the reasoning and alternatives.
What was above the limit in Mountain Home Air Force Base water?
Nitrate (as N). Compare the value with the limit in the ranked chart and the full report above, and check the violations section for whether EPA recorded a violation.
Who to call
- System contact: GOMEZ, KATIE, 208-828-1761
- DEQ Boise Regional Office, 1445 N Orchard St, Boise ID 83706, (208) 373-0550
- Central District Health (well testing, septic, local health questions)
Sources
Sample results as of 2026-06-25; inventory and violations from EPA SDWIS; page built 2026-09-14. 213 individual results reviewed.
More: Mountain Home water, Mountain Home AFB water, Elmore County, Nitrate (as N), PFHxS, PFBS
Numbers are the system's samples at its taps and wells, not yours. Lead and copper are 90th percentiles from sampled homes. Well pages are nearby-sample estimates. Health text restates EPA and DEQ. Methodology.