Is Lawrence, KS tap water safe?
The short answer
1 of the 7 utilities serving Lawrence has a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and Kansas’s records: Douglas Co RWD 3.
City of Lawrence, 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 27.3 ppb, above EPA’s health benchmark. Health goals are stricter than legal limits and are not enforced.
The water from City of Lawrence is soft to moderately hard depending on the source, 36 to 74 mg/L (2.1 to 4.3 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 Lawrence’s ZIP codes, from EPA’s estimates.
- Open report
City of Lawrence
Kansas · serves 95,256 people · about 15,200 in Lawrence
2 results above the health goal and 1 result above EPA’s health benchmark. The worst: Lithium at 27.3 ppb, above EPA’s health benchmark. Hardness: soft to moderately hard depending on the source, 36 to 74 mg/L (2.1 to 4.3 grains per gallon).
No health-based violations since 2016
- Open report
Douglas Co RWD 1
Kansas · serves 1,400 people · nearly all in Lawrence
1 result above the health goal. The worst: Lead at 1.1 ppb, above the health goal.
No health-based violations since 2016
- Open report
University of Kansas
Kansas · serves 35,000 people · about 1,000 in Lawrence
1 result above the health goal and 1 result above EPA’s health benchmark. The worst: Lithium at 18.4 ppb, above EPA’s health benchmark.
No health-based violations since 2016
- Open report
Douglas Co RWD 5
Kansas · serves 2,500 people · about 170 in Lawrence
1 result above the health goal. The worst: Lead at 2.8 ppb, above the health goal.
No health-based violations since 2016
- Open report
Jefferson Co RWD 13
Kansas · serves 2,115 people · about 160 in Lawrence
2 results above the health goal. The worst: Arsenic at 1.6 ppb, above the health goal. Hardness: hard, 175 mg/L (10.2 grains per gallon).
No health-based violations since 2016
- Open report
Douglas Co RWD 4
Kansas · serves 3,370 people · about 120 in Lawrence
1 result above EPA’s health benchmark. The worst: Lithium at 53.3 ppb, above EPA’s health benchmark.
No health-based violations since 2016
- Open report
Douglas Co RWD 3
Kansas · serves 4,663 people · under 100 in Lawrence
1 result above the health goal. The worst: Lead at 3.2 ppb, above the health goal. Hardness: moderately hard to hard depending on the source, 110 to 160 mg/L (6.4 to 9.4 grains per gallon).
1 health-based violation since 2016
What handles it
Each of these is certified, on a certifier’s listing, for a result above a line in City of Lawrence’s water, which serves the most people here. Another utility’s report names what handles its own results.
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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: Lead, Arsenic
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: Lead, Arsenic
Water testing near Lawrence
The 3 labs Kansas certifies closest to Lawrence, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.
Johnson County Water Quality Laboratory
Olathe, KS · about 21 miles
Certified for bacteria, nitrate, lead and copper
Olathe Environmental Laboratory
Olathe, KS · about 21 miles
Certified for bacteria, nitrate, lead and copper, metals, minerals and other inorganics
Eurofins Kansas City
Lenexa, KS · about 28 miles
Certified for bacteria
Which ZIP codes are in Lawrence: 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 Lawrence
Other towns in Douglas County with a page of their own.
What to do next
- Read City of Lawrence’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