Is Manhattan, KS tap water safe?
The short answer
1 of the 14 utilities serving Manhattan has a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and Kansas’s records: Tuttle Cc Mobile Home Park, LLC.
City of Manhattan, which serves the most people here, has 2 results above the health goal and 1 result above EPA’s health benchmark. The worst: Lithium at 17.4 ppb, above EPA’s health benchmark. Health goals are stricter than legal limits and are not enforced.
The water from City of Manhattan is moderately hard, 97 mg/L (5.6 grains per gallon). How Kansas’s water compares.
A town can be served by more than one utility, and some homes are on private wells. The name on your water bill tells you which is yours, and your ZIP code narrows it down. They are listed by how many people each serves in Manhattan’s ZIP codes, from EPA’s estimates.
- Open report
City of Manhattan
Kansas · serves 54,763 people · about 5,700 in Manhattan
2 results above the health goal and 1 result above EPA’s health benchmark. The worst: Lithium at 17.4 ppb, above EPA’s health benchmark. Hardness: moderately hard, 97 mg/L (5.6 grains per gallon).
No health-based violations since 2016
- Open report
Riley Co RWD 1
Kansas · serves 2,108 people · about 310 in Manhattan
Nothing in its records is above a health goal.
No health-based violations since 2016
- Open report
Pottawatomie Co RWD 1
Kansas · serves 7,535 people · about 220 in Manhattan
1 result above the health goal. The worst: Arsenic at 4.8 ppb, above the health goal. Hardness: moderately hard to hard depending on the source, 88 to 130 mg/L (5.1 to 7.6 grains per gallon).
No health-based violations since 2016
- Open report
University Park Water District
Kansas · serves 199 people · under 100 in Manhattan
1 result above the health goal. The worst: Lead at 0.9 ppb, above the health goal.
No health-based violations since 2016
- Open report
Wabaunsee Co RWD 2
Kansas · serves 1,400 people · under 100 in Manhattan
2 results above the health goal. The worst: Lead at 1.8 ppb, above the health goal. Hardness: moderately hard, 120 mg/L (7 grains per gallon).
No health-based violations since 2016
- Open report
Miller Mobile Home Park
Kansas · serves 113 people · under 100 in Manhattan
Nothing in its records is above a health goal. Hardness: very hard, typically 370 mg/L (21.6 grains per gallon).
No health-based violations since 2016
- Open report
Tuttle Cc Mobile Home Park, LLC
Kansas · serves 50 people · under 100 in Manhattan
Nothing in its records is above a health goal. Hardness: very hard, 510 mg/L (29.8 grains per gallon).
1 health-based violation since 2016
- Open report
Konza Valley Water Benefit District
Kansas · serves 345 people · under 100 in Manhattan
1 result above the health goal. The worst: Lead at 2.2 ppb, above the health goal.
No health-based violations since 2016
- Open report
Rocky Ford Mobile Home Court
Kansas · serves 120 people · under 100 in Manhattan
1 result above the health goal. The worst: Arsenic at 4.4 ppb, above the health goal. Hardness: very hard, 380 mg/L (22.2 grains per gallon).
No health-based violations since 2016
- Open report
Hunters Island Water District
Kansas · serves 200 people · under 100 in Manhattan
Nothing in its records is above a health goal.
No health-based violations since 2016
4 more utilities in Manhattan
By EPA’s estimate, each serves fewer people in Manhattan than those above.
- Colonial Gardens Mobile Home CTserves 1,200 people · lists Manhattan among the places it serves · no health-based violations since 2016
- Riverchase Mobile Home Parkserves 460 people · lists Manhattan among the places it serves · no health-based violations since 2016
- Neighbors of Walnut Grove, LLCserves 256 people · lists Manhattan among the places it serves · no health-based violations since 2016
- Neighbors of Walnut Grove West, LLCserves 203 people · lists Manhattan among the places it serves · no health-based violations since 2016
What handles it
Each of these is certified, on a certifier’s listing, for a result above a line in City of Manhattan’s water, which serves the most people here. Another utility’s report names what handles its own results.
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Countertop reverse osmosis
- IAPMO listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 58NSF/ANSI 401checked Oct. 4, 2026
Certified for: Arsenic, Lead
Aquasana SmartFlow Reverse Osmosis (AQ-SFRO2)
Under-sink reverse osmosis
- WQA listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 58NSF/ANSI 401checked Oct. 9, 2026
Certified for: Arsenic, Lead
Brondell Capella RC250 Reverse Osmosis System
Under-sink reverse osmosis
- WQA listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 58NSF/ANSI 401checked Oct. 9, 2026
Certified for: Arsenic, Lead
Water testing near Manhattan
The 3 labs Kansas certifies closest to Manhattan, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.
Irwin Army Community Hospital-Water Laboratory-PH-EH
Fort Riley, KS · about 13 miles
Certified for bacteria
Pace Analytical Services, Inc. - Salina
Salina, KS · about 62 miles
Certified for bacteria, nitrate
LandIntel Solutions, LLC
Scandia, KS · about 74 miles
Certified for bacteria
Which ZIP codes are in Manhattan: Census 2020 relationship files. Which utilities serve them, and how many people: EPA SDWIS and EPA’s service area map. Each utility’s results: EPA UCMR 5, EPA SDWIS, and EPA’s and the state’s compliance monitoring, as its report lists them. How they are measured: methodology. Certified labs: Kansas Department of Health and Environment, drinking water labs, as listed in TNI LAMS; distances from the Census 2020 ZIP code tabulation area gazetteer.
Near Manhattan
Towns nearby with a page of their own.
What to do next
- Read City of Manhattan’s full reportEvery result with its dates, the violations, and the certification claim that handles each finding.Open the report
- About LithiumWhat it does to health, where it comes from, and the certification claim that addresses it.About Lithium
- On a private well?No utility tests a well. A certified lab test is the first step.How to test well water