Who supplies Middleton’s water
City of Middleton
EPA system ID ID3140074Groundwater from 7 wells located throughout the city, disinfected before delivery (the report lists chlorine or another disinfectant).
Middleton water report, by the numbers
| What was measured | Result | Federal limit | EWG guideline | Year · source |
|---|---|---|---|---|
| Nitrate | 1 ppm | 10 ppm | 0.14 ppm | 2023City of Middleton 2023 Consumer Confidence Report |
| Lead 0 samples above the action level. | 0 ppb | 15 ppb action level | — | 2023City of Middleton 2023 Consumer Confidence Report |
| Copper 0 samples above the action level. | 0.11 ppm | 1.3 ppm action level | — | 2023City of Middleton 2023 Consumer Confidence Report |
| TTHMs / HAA5 | Not detected ppb | 80 / 60 ppb | — | 2023City of Middleton 2023 Consumer Confidence Report |
| PFAS (PFOA, PFOS, PFHxS, PFNA, PFHpA, PFBS) | Not detected | — | — | 2023City of Middleton 2023 Consumer Confidence Report |
| Lithium (state-required monitoring) | 10 ppb | No federal limit | — | 2023City of Middleton 2023 Consumer Confidence Report |
| Arsenic Not listed as detected in the 2023 city report. | 1.23 ppb | 10 ppb | 0.004 ppb | 2021–2023 avgEWG Tap Water Database |
| Chromium-6 (hexavalent) | 1.33 ppb | No federal limit for chromium-6 (total chromium 100 ppb) | 0.02 ppb | 2013–2023 avgEWG Tap Water Database |
| Uranium | 0.34 pCi/L | EPA MCL is 30 µg/L (EWG lists 20 pCi/L) | 0.43 pCi/L | 2018–2023 avgEWG Tap Water Database |
| Fluoride | 0.223 ppm | 4 ppm | — | 2021–2023 avgEWG Tap Water Database |
EWG figures are utility annual averages for 2021–2023 (radiological 2018–2023) from tests the utilities report to Idaho DEQ. EWG health guidelines are health-based goals, not legal limits. “ND” means not detected.
What stands out
Middleton’s 2023 results are among the cleanest in our Treasure Valley guides: no detected lead, PFAS or disinfection byproducts, and nitrate at 1 ppm against a 10 ppm limit. The main thing the city report doesn’t cover is hardness, which drives most of what homeowners notice day to day (spotting, scale and soap that won’t rinse). A tap test tells you whether a softener makes sense.
Private wells around Middleton
IDWR counted 5,343 documented domestic wells across Canyon County (2019, cited in a Boise State/IDWR uranium study). Well water isn’t covered by city testing. Southwest District Health serves Canyon County; see how to test your water and our well water guide.
On a private well?
Canyon County is served by Southwest District Health
SWDH offers free sample bottles and a $10 courier that carries samples to the state lab on Wednesdays only (drop-off cutoffs: Payette 9:30 a.m., Emmett 10:30 a.m., Caldwell 11:00 a.m.). Lab fees are billed separately.
Treating Middleton water
Get an honest recommendation
Tell us what you’re noticing and we’ll recommend only what your water needs, with one written price. If you don’t need a system, we’ll say so.
Frequently asked questions
Is Middleton, Idaho tap water safe to drink?
Does Middleton water have PFAS?
Who supplies water in Middleton?
Sources
- City of Middleton 2023 Consumer Confidence Report
- City of Middleton, public works
- EWG Tap Water Database, City of Middleton (ID3140074)
- EPA ECHO, City of Middleton (ID3140074)
- Boise State University / IDWR uranium study (October 2019)
Honest Water Boise is not affiliated with any utility, Idaho agency or EWG. This guide summarizes public reports for general information and does not replace your utility’s Consumer Confidence Report or a lab test of your own water.
