County · Idaho
Bonneville County, Idaho: drinking water records
Explore EPA records for 35 community water systems across 11 ZIP codes in Bonneville County, then find water-testing resources and available recent monitoring-station readings.
Data as of EPA UCMR 5 final release, August 2026 (file dated Aug 28, 2026) · EPA SDWIS 2026Q2 (file dated Jul 9, 2026). How we build these pages
Drinking-water records
EPA survey and compliance records are historical reports. UCMR 5 results are available for 3 of the 35 listed systems in this snapshot. A system with no reported PFAS detection is not a test of every tap or every contaminant.
System population figures are summed from EPA registry records and can overlap where wholesalers and retail systems serve the same people. They are not a Census county-population estimate.
Water systems in this county
All 35 active community systems in the available county records, sorted by record completeness. Scroll the table to explore more systems.
| Water system | People served | PFAS survey results | PFAS found | Health-based violations | Lead, 9 in 10 homes at or below |
|---|---|---|---|---|---|
| Falls Water Company INC ID7100030 | 22,650 | 420 | 0 | 1 | 3 ppbbelow the action level |
| Idaho Falls City of ID7100039 | 69,450 | 900 | 0 | 0 | 3 ppbbelow the action level |
| Ammon City of ID7100004 | 17,338 | 180 | 0 | 0 | 0 ppbbelow the action level |
| Taylor Mountain Water and Sewer District ID7100023 | 600 | 0 | 0 | 1 | 0 ppbbelow the action level |
| Pinewood Estates ID7100071 | 450 | 0 | 0 | 1 | 0 ppbbelow the action level |
| J and K Water Corp ID7100044 | 370 | 0 | 0 | 2 | 3 ppbbelow the action level |
| Blackhawk Estates/Iron Rim ID7100207 | 270 | 0 | 0 | 1 | 3 ppbbelow the action level |
| Country Life Estates ID7100024 | 250 | 0 | 0 | 7 | 0 ppbbelow the action level |
| Shady Rest RV Park and Campground ID7100106 | 80 | 0 | 0 | 14 | 3 ppbbelow the action level |
| Highway Estates Water Assn ID7100035 | 65 | 0 | 0 | 1 | 13 ppbbelow the action level |
| Nur Water Assn ID7100061 | 60 | 0 | 0 | 4 | 3 ppbbelow the action level |
| Autumn Cove Mobile Home Court ID7100013 | 38 | 0 | 0 | 1 | 2 ppbbelow the action level |
| Sohns Mobile Home Park INC ID7100086 | 32 | 0 | 0 | 1 | 2 ppbbelow the action level |
| Iona Water Dept ID7100041 | 2,717 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Comore Loma ID7100020 | 1,500 | 0 | 0 | 0 | 1 ppbbelow the action level |
| Ucon City of ID7100094 | 1,161 | 0 | 0 | 0 | 0 ppbbelow the action level |
| 3d Water Association ID7100201 | 680 | 0 | 0 | 0 | 1 ppbbelow the action level |
| Panorama Hills Water Company ID7100067 | 175 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Sunset Trailer Ranch ID7100088 | 150 | 0 | 0 | 0 | 0 ppbbelow the action level |
| The Centre at Rainey Creek ID7100226 | 129 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Bonneville Acres Water Users Assn INC ID7100059 | 100 | 0 | 0 | 0 | 2 ppbbelow the action level |
| Miller Country Estates ID7100184 | 83 | 0 | 0 | 0 | 2 ppbbelow the action level |
| Falcon Ridge Subdivision ID7100208 | 75 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Broadway Apartments ID7100047 | 72 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Cottonwood Acres 3 & 5 ID7100192 | 60 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Lazy Eight Estates ID7100215 | 60 | 0 | 0 | 0 | 2 ppbbelow the action level |
| Woodland Heights Water Assn #1 ID7100107 | 54 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Cottonwood Acres Div 4 ID7100022 | 43 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Township Park Water Company ID7100155 | 43 | 0 | 0 | 0 | 1 ppbbelow the action level |
| Westwood Water Assn ID7100148 | 41 | 0 | 0 | 0 | 2 ppbbelow the action level |
| Rancho Via Well Users Assn INC ID7100149 | 40 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Karey Lane Well INC ID7100081 | 38 | 0 | 0 | 0 | 1 ppbbelow the action level |
| Dj Park Well ID7100200 | 35 | 0 | 0 | 0 | 2 ppbbelow the action level |
| Brookhaven Water Assn ID7100012 | 33 | 0 | 0 | 0 | 4 ppbbelow the action level |
| Northside Estates Well ID7100060 | 30 | 0 | 0 | 0 | 2 ppbbelow the action level |
USGS · Monitoring stations
The water, more recently.
Available station readings in Bonneville County, Idaho. Each measurement keeps its time, unit and original source.
These readings describe water at a monitoring station. They do not test your tap, measure PFAS or lead, or determine whether water is safe to drink or swim in.
Recent observations load when this section comes into view.
How these readings update
We check for updates every 10 minutes while this section is visible and show supported observations from the last 48 hours. The time beside a reading is when USGS measured it; the checked time is when our service retrieved the response. We mark a reading more than 6 hours old as older. Provisional observations can change after USGS review. A missing reading does not mean zero or clean water.
Temperature, pH, dissolved oxygen, turbidity, conductivity, streamflow and water level are shown only where a station reports them. Different measurements have different units and sampling intervals. USGS data and documentation.
Your next step
Water testing, reports & local help.
Use these official directories to find your drinking-water agency, a certified laboratory and public water records. We have not yet added an individually reviewed local resource list for this county.
Official national directories
Water testing
Find your state’s private-well program
EPA’s state directory points well owners to local program information. Services and eligibility vary by state and county.
Water testing
Find a certified drinking-water laboratory
Use EPA’s directory to reach your state’s laboratory certification program. EPA does not provide on-request testing of residential drinking water.
Public records
Find your utility’s Consumer Confidence Report
EPA links to community water-system reports and explains how to read them. Look for your actual supplier rather than assuming every address in a county shares one system.
Public records
Explore USGS water observations
Find current and historical observations from USGS monitoring locations, including available stream, lake, and groundwater data. Measurements vary by station and do not replace a test of your household water.
A county overview cannot identify every property’s water provider. If you use a public water system, confirm its name on your bill and request its annual Consumer Confidence Report. Private wells need their own testing; public-system records do not describe a private well.
Understand water testing and laboratory reportsResource descriptions are compiled by Tap Water Lookup. Review dates describe our source check, not a new water sample. How we review sources · Suggest a correction
Explore your area
Local coverage in Bonneville County
11ZIP areas in this overview
Explore the water-system records, recent station readings and testing resources on this county page. They describe the systems and stations identified in each section; they are not a separate water test for every community.
Towns and communities
- Ammon
- Freedom
- Idaho Falls
- Iona
- Irwin
- Swan Valley
- Ucon
View ZIP areas and understand coverage
- 83120Freedom
- 83285
- 83401Idaho Falls
- 83402Idaho Falls
- 83404Idaho Falls
- 83406Ammon
- 83427Iona
- 83428Irwin
- 83443Swan Valley
- 83449Swan Valley
- 83454Ucon
These Census ZIP Code Tabulation Areas are grouped here by their largest county overlap. A ZIP area can cross county lines and contain several water suppliers or private wells. Place labels reflect Census geography, not verified postal city names or utility service boundaries.
Records for these areas are currently presented in this county overview rather than individual ZIP reports. An unpublished report does not mean there are no water records. Confirm your supplier on your water bill; if you use a private well, testing your own well is the relevant next step.
Sources and scope
EPA UCMR 5 occurrence data, samples collected 2023-01-03 – 2026-06-17, final release, August 2026 (file dated Aug 28, 2026); EPA SDWIS via ECHO, 2026Q2 extract (file dated Jul 9, 2026); EPA service-area boundaries v3.0; Census 2020 ZCTAs. Database prepared 2026-09-03.
Counts cover the systems that report this county to EPA. A water system may cross county lines. "Found" means at least one result at or above the laboratory reporting level; it is not a compliance finding.
Compiled by Tap Water Lookup from the sources identified on this page. Read the methodology and review process.
