Harlowton Tap Water Quality Report
Harlowton's water has 1 contaminant above EPA MCLGs. Consider using a certified water filter for additional protection.
People Served
1,050
Health-based violations since 2020
0
HARLOWTON WATER SYSTEM. EPA SDWA violation data as of Q2 2026 (downloaded 2026-07-09).
Is Harlowton Tap Water Safe to Drink?
We recommend using a certified water filter for additional protection, especially for vulnerable populations like children, pregnant women, and those with compromised immune systems. Harlowton's water has 1 contaminant above EPA health-based guidelines (MCLGs), while it meets federal legal limits.
HARLOWTON WATER SYSTEM, Harlowton's water system, serves 1,050 people. 1 other system also serves parts of Harlowton. Each system's results are listed under its own name, never added to HARLOWTON WATER SYSTEM's. Water quality testing is conducted regularly and reported to the EPA.
Boil water advisories are issued by water systems and state agencies, and they change from day to day. Boil water advisories in Montana
What these numbers actually mean for Harlowton, Montana
We read Harlowton, Montana’s published record and send you a short report — which findings warrant a decision, which to ignore, and what to do about it. Including when the answer is nothing.
- 1 contaminant above EPA MCLGs
- 6 results on file
- No PFAS results on record
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What Harlowton's water readings can explain
Utility-reported data for Harlowton includes manganese — the readings behind these common tap water questions. We publish a city-level hardness figure for Harlowton, resolved from its water systems where they report one and estimated from county sampling where they do not. Each page starts with the hot-tap and cold-tap check, then shows what your own water system reported.
On a private well near Harlowton? Public-water results do not apply to private wells. See Wheatland County well water testing and USGS risk data — modeled arsenic, nitrate, and the tests to run.
Water softener cost and installation in Harlowton
Harlowton's tap water has an estimated 17.7 grains per gallon (303.0 mg/L, county sampling in Wheatland County) — very hard on the USGS scale, the range where scale on fixtures and appliances is the usual complaint.
Water softener cost for an estimated 17.7 gpg water in Harlowton — equipment and local installation labour for your ZIP code, with the sizing arithmetic shown in full. For the national picture first, read what a water softener costs — equipment, installation labour and ten-year ownership, each separated out. For Montana as a whole, read water softener cost in Montana — priced against the plumber wage published for the state.
Frequently Asked Questions About Harlowton Tap Water
Harlowton's water has 1 contaminant above EPA MCLGs. While the water meets federal legal limits, we recommend using a certified water filter for additional protection, especially for vulnerable populations like children, pregnant women, and those with compromised immune systems.
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This form corrects our data; it does not reach HARLOWTON WATER SYSTEM. For a problem with your water now (discolored water, no water, low pressure, a leak), contact HARLOWTON WATER SYSTEM directly.
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