Manhattan Tap Water Quality Report
Manhattan's water has 4 contaminants above EPA MCLGs. We recommend using a certified water filter.
Water system
MANHATTAN WATER SYSTEM
People Served
1,800
Health-based violations since 2020
0
MANHATTAN WATER SYSTEM. EPA SDWA violation data as of Q2 2026 (downloaded 2026-07-09).
Is Manhattan Tap Water Safe to Drink?
We strongly recommend using a certified water filter to reduce exposure: Manhattan's water has 4 contaminants above EPA health-based guidelines. Check our filter recommendations below for NSF-certified options that can remove the specific contaminants found in Manhattan's water.
MANHATTAN WATER SYSTEM, Manhattan's water system, serves 1,800 people. 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 Manhattan, Montana
We read Manhattan, 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.
- 4 contaminants above EPA MCLGs
- 12 results on file
- No PFAS results on record
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Recommended Water Filters for Manhattan
Based on Manhattan's water quality data, these NSF-certified filters are recommended to remove contaminants above EPA MCLGs.
AquaTru
Classic
NSF Certified:
Flow Rate
0.04 gpm
Daily Production
600 gpd
Highlights:
- Best overall contaminant reduction score
- Most performance certifications
- Lifetime warranty
- NSF-42, NSF-53, NSF-58, NSF-401 certified
Removes 23 contaminants:
+18 more
Molybdenum, Barium, Chlorine, Arsenic, 83+ contaminants, Calcium, Chloride, Copper, Magnesium, Nitrate, Phosphorus, Sodium, Sulfate, Total Dissolved Solids, Zinc, Total THMs, Chloroform, Nitrate (as N)
AquaTru
Carafe
NSF Certified:
Flow Rate
0.3 gpm
Daily Production
4 gpd
Highlights:
- Verified PFAS reduction
- Glass collection vessel
- Plug-and-play installation
- NSF-53, NSF-42, NSF-58, NSF-401, NSF-372 certified
Removes 17 contaminants:
+12 more
Arsenic, 83+ contaminants, Copper, Total THMs, Chloroform, Chloride, Sulfate, Nitrate (as N), Molybdenum, Barium, Strontium, Uranium
Waterdrop
G3 P600
NSF Certified:
Flow Rate
600 gpm
Daily Production
600 gpd
Highlights:
- Space-saving design
- Good contaminant reduction
- NSF-58 certified
Removes 4 contaminants:
Waterdrop
A1
NSF Certified:
Flow Rate
0.042 gpm
Daily Production
130 gpd
Highlights:
- Built-in UV sterilization
- Easy maintenance with filter change reminders
- NSF-58 certified
- Hot and cold water dispensing
Removes 12 contaminants:
+7 more
Molybdenum, Sulfate, Strontium, Phosphorus, Chlorine, Barium, Nitrate
Verify Your Water Quality with Independent Testing
With 4 contaminants above EPA MCLGs, independent laboratory testing provides a second opinion and can track changes over time.
SimpleLab
Advanced Home Water Test
$269
Comprehensive water analysis testing over 200 contaminants including bacteria, heavy metals, and chemical compounds.
Tap Score
Haloacetic Acids (HAA9) Test
$275
Tests for disinfection byproducts formed when chlorine reacts with organic matter in water treatment.
Tap Score
Advanced Microplastics Test
$829
Cutting-edge testing for microplastics particles in drinking water using advanced laboratory techniques.
With 4 contaminants above health guidelines, you may want to explore water purification options. Learn how to make distilled water at home for applications like humidifiers, CPAP machines, and baby formula.
What Manhattan's water readings can explain
Utility-reported data for Manhattan includes sulfate — the readings behind these common tap water questions. We publish a city-level hardness figure for Manhattan, 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 Manhattan? Public-water results do not apply to private wells. See Gallatin County well water testing and USGS risk data — modeled arsenic, nitrate, and the tests to run.
Water softener cost and installation in Manhattan
Manhattan's tap water has an estimated 7.8 grains per gallon (134.0 mg/L, county sampling in Gallatin County) — hard on the USGS scale, the range where scale on fixtures and appliances is the usual complaint.
Water softener cost for an estimated 7.8 gpg water in Manhattan — 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 Manhattan Tap Water
Manhattan's water has 4 contaminants above EPA MCLGs. We strongly recommend using a certified water filter to reduce exposure to these contaminants. Check our filter recommendations below for NSF-certified options that can remove the specific contaminants found in Manhattan's water.
Spotted something off on this page?
Residents keep our data honest.
This form corrects our data; it does not reach MANHATTAN WATER SYSTEM. For a problem with your water now (discolored water, no water, low pressure, a leak), contact MANHATTAN WATER SYSTEM directly.
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