Ok Water Association water quality
Met every federal limit. 1 contaminant at half a limit or higher. hardness not in the latest CCR.
ID3140085. Data through 2026-05-06. DEQ record.
What's in it
Uranium
ElevatedAPEC ROES-50 Essence 5-Stage Reverse Osmosis: manufacturer-reported, not certified.
7 other contaminants tested, not detected or well below the limit
Copper 0.09ppm Gross Alpha ND HFPO-DA (GenX) ND Lead ND Nitrate (as N) 4.10ppm PFHxS ND Radium 226 + 228 ND
Filters that match
APEC ROES-50 Essence 5-Stage Reverse Osmosis
under sink ro · diy
- Uraniumremoves it, per manufacturer testing
Nothing in this water calls for whole-house treatment. A drinking-water filter covers the exposure that matters. Whole-house units here are optional, mainly for taste and chlorine.
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.
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 | 0.09ppm | 1.30ppm AL | Detected | 2025-12-31 | ||
| Gross Alpha | ND | 15.0pCi/L MCL | Not detected | 2025-09-08 | ||
| HFPO-DA (GenX) | ND | 10.0ppt MCL | Not detected | 2026-05-06 | ||
| Lead 90th percentile at home taps note | 0.0ppb | 15.0ppb AL | Not detected | 2025-12-31 | ||
| Nitrate (as N) | 4.10ppm latest 3.90ppm | 10.00ppm MCL | Detected | 2026-05-06 | ||
| PFHxS | ND | 10.0ppt MCL | Not detected | 2026-05-06 | ||
| Radium 226 + 228 | ND | 5.00pCi/L MCL | Not detected | 2025-09-08 | ||
| Uranium | 20.0ppb | 30.0ppb MCL | Elevated | 2025-09-08 |
- 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.
6 other regulated contaminants tested
| Contaminant | 36 mo max | Limit | Status | Last sample |
|---|---|---|---|---|
| Atrazine | ND | 3.0ppb | Not detected | 2025-09-08 |
| Benzene | ND | 5.0ppb | Not detected | 2025-09-08 |
| 1,2-Dibromo-3-chloropropane | ND | 0.2ppb | Not detected | 2025-09-08 |
| Tetrachloroethylene | ND | 5.0ppb | Not detected | 2025-09-08 |
| Sodium | 81.40ppm | none | Detected | 2025-09-08 |
| Trichloroethylene | ND | 5.0ppb | Not detected | 2025-09-08 |
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.
Track record5 violations on record, 0 health-based
✓ no violation recorded n monitoring or reporting only n includes a health-based violation ? outside the loaded record
No health-based violations (MCL, treatment technique, or disinfectant level) in the last ten years.
Monitoring and reporting violations (5)
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 | Nitrates | 1 | Routine monitoring, major · Nitrate (as N) |
| 2025 | Lead and Copper Rule | 1 (1 open) | Lead service line replacement (LCR) |
| 2023 | Miscellaneous | 1 | Routine monitoring, major · Sodium |
| 2021 | Revised Total Coliform Rule | 1 | Monitoring, routine (RTCR) |
| 2017 | Revised Total Coliform Rule | 1 | Monitoring, routine (RTCR) |
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 from2 active wells
2 active wells, and 0 treatment points on record (SDWIS counts each chlorination or filtration point as a treatment plant).
BONNEVILLE WELL: Susceptibility: ioc high (auto), voc high (auto), soc high (auto), microbial high (auto).
Source water assessment susceptibility: final map[IOC:Auto High Microbials:Auto High SOC:Auto High VOC:Auto High]; hydrologic sensitivity M; pci land use map[IOC:M Microbials:M SOC:M VOC:M]; system construction H;
Source names (2)
BONNEVILLE WELL, WILLOW WELL
Every match, by categorytop three per category
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Drinking water
Under sink, pitcher, or faucet. Treats the water you drink and cook with.
APEC ROES-50 Essence 5-Stage Reverse Osmosis
Manufacturer-reported reduction for uranium, nitrate, and sodium. Not NSF-certified for uranium, nitrate, and sodium.
Plumber recommended if you are not comfortable with a drain saddle and a tank. Not a whole-house solution.
Aquasana OptimH2O Reverse Osmosis + Claryum
Certified for nitrate (NSF/ANSI 58); manufacturer-reported for uranium.
Plumber recommended if you are not comfortable with a drain saddle and a tank. Not a whole-house solution.
Express Water RO5DX 5-Stage Reverse Osmosis System (50 GPD)
Manufacturer-reported reduction for uranium and nitrate. Not NSF-certified for uranium and nitrate.
Plumber recommended if you are not comfortable with a drain saddle and a tank. Not a whole-house solution.
Whole house
Installed where water enters the house. For fixtures, laundry and showers.
Nothing in this water calls for whole-house treatment. A drinking-water filter covers the exposure that matters. Whole-house units here are optional, mainly for taste and chlorine.
Sprite High Output 2 Universal Shower Filter with 3-Setting Shower Head (HO2-WH-M)
Does not address uranium.
DIY. No plumbing.
Culligan WSH-C125 Wall-Mount Shower Filter
Does not address uranium.
DIY. No plumbing.
Culligan ISH-100 Inline Shower Filter
Does not address uranium.
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 uranium.
Plumber recommended if you are not comfortable with this install.
Whirlpool WHES30E 30,000 Grain Water Softener
Does not address uranium.
DIY if you are comfortable with this install.
Whirlpool WHES40E 40,000 Grain Water Softener
Does not address uranium.
DIY if you are comfortable with this install.
Questions about Ok Water Association
Is Ok Water Association tap water safe to drink?
Ok Water Association met every federal limit in the last 36 months, with no open health-based violation. 1 contaminant was at half the limit or higher: Uranium. The results table shows each value against its limit. Results reflect the system's sampling points, not the plumbing in any one home.
Is Ok Water Association water hard?
Hardness has not been reported for Ok Water Association in a reviewed Consumer Confidence Report yet. The softener sizing widget uses a labelled county default until a report is reviewed.
Is Ok Water Association water fluoridated?
No fluoride result in the last 36 months.
Where does Ok Water Association water come from?
Ok Water Association draws from 2 active wells. Source and treatment details are listed above.
What filter fits Ok Water Association water?
For drinking water the matching engine ranks APEC ROES-50 Essence 5-Stage Reverse Osmosis first for this profile, based on certified reduction claims for the contaminants flagged above. See the filters section for the reasoning and alternatives.
Who to call
- System contact: JENKINS, ELAINE, 208-465-5236
- DEQ Boise Regional Office, 1445 N Orchard St, Boise ID 83706, (208) 373-0550
- Southwest District Health (well testing, septic, local health questions)
Sources
Sample results as of 2026-05-06; inventory and violations from EPA SDWIS; page built 2026-09-14. 42 individual results reviewed.
More: Canyon County, Uranium
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.