Is Lawrence tap water safe to drink?

Yes but with caveats

Lawrence's water meets EPA minimum standards but has some concerns. Filtration is recommended for sensitive individuals.

78/100

Purity Score

Issues Found

10.5 GPG

Hardness

Not detected

PFAS

3 Issues Detected in Lawrence

Very Hard Water (10.5 GPG)

Hard water causes scale in pipes and shortens appliance lifespan.

Hardness data for Lawrence

Moderate Chlorine Level

Chlorine within EPA limits but may affect taste.

Chlorine info for Lawrence

Arsenic Approaching Limit (0.3 mg/L)

EPA limit is 0.010 mg/L.

Arsenic info for Lawrence

Fix Your Water — See Recommended Filters

Kansas

660,446,604,566,046 · Kansas River and Clinton Lake

Lawrence Tap Water Analysis (Hard Water)

Moderate Risk Updated March 2026 97,266 residents

See Best Filters for Lawrence

Purity Score

Mineral content in Lawrence's water supply rates as very hard. This guide covers what that means for your home and which filters or softeners address it best.

Water Quality Data

Not detected (2.5 ppb)

Very hard softener recommended.

Hard water in Lawrence

Chlorine

Medium

Affects taste and skin. Carbon filter removes it.

Learn about chlorine

TDS

Unknown

High TDS (>500 ppm) may affect taste.

Contaminant Levels

PFAS

Lead

2.5 ppb

Nitrate

1.8 mg/L

Arsenic

0.3 mg/L

Hardness

10.5 gpg

Health Insights

1
At 10.5 GPG, Lawrence's water qualifies as very hard. This can cause limescale in pipes and shorten appliance lifespan.
2
Chlorine levels may affect the taste of Lawrence's tap water. A carbon filter improves flavor.

Score

78 /100

Good

"Good" threshold (70)

Lawrence tap water is sourced from Kansas River and Clinton Lake and treated by City of Lawrence Utilities. Water hardness is hard at 10.5 GPG which may cause scale buildup. Overall purity score: 78/100 (Good). Updated for 2026.

Fix Your Water

Best filters matched to Lawrence's 3 issues.

See Filters

MATCHED TO LAWRENCE'S WATER DATA

Best Water Filters for Lawrence, KS (2026)

Matched to Very Hard Water (10.5 GPG), Moderate Chlorine in Lawrence.

Very Hard Water (10.5 GPG) Moderate Chlorine

Best Overall #1 for Lawrence

AFWFilters 5600sxt 48000 Grain Softener

Salt-Based Water Softener

$650-750

Why this fits Lawrence

Handles Lawrence's hard water (Very Hard Water (10.5 GPG))
Premium quality at $650-750

Pros & Cons +

48000 grain capacity handles very hard water

Digital metered valve saves salt

Requires salt refills monthly

Does not remove contaminants

Fix Your Water — Check Price

Best Value

Clearly Filtered Water Pitcher

Pitcher Filter

$80-95

Why this fits Lawrence

Eliminates chlorine taste and odor from Lawrence's water
NSF/ANSI 42 + NSF/ANSI 53 + NSF/ANSI 401 certified
Budget-friendly at $80-95

Pros & Cons +

No installation fill and pour

Removes 365+ contaminants including PFAS

Small capacity 2-3 people

Filter replacements every 4 months

Check Price on Amazon

Best for Taste

Waterdrop 10UA Under-Sink Filter

Under-Sink Carbon Filter

$40-60

Why this fits Lawrence

Eliminates chlorine taste and odor from Lawrence's water
NSF/ANSI 42 certified
Budget-friendly at $40-60

Pros & Cons +

Very affordable

Easy DIY install no plumber

Does not remove PFAS or hardness

Single point of use only

Check Price on Amazon

Also Recommended

Waterdrop G3P800 Tankless RO

Tankless Reverse Osmosis

$380-450

Why this fits Lawrence

Eliminates chlorine taste and odor from Lawrence's water
NSF/ANSI 58 + NSF 372 certified
Premium quality at $380-450

Pros & Cons +

No tank saves cabinet space

800 GPD fast flow rate

Higher upfront cost

Filter replacements are proprietary

Check Price on Amazon

As an Amazon Associate, PurityMap may earn from qualifying purchases. Based on latest Lawrence water data.

Full Filter Comparison for Lawrence

Know exactly what's in YOUR tap

City data shows averages. Your home may differ.

Test Your Water — $25-30

About Lawrence's Water

Hard Water in Lawrence: Impact on Plumbing and Appliances

At 10.5 grains per gallon, Lawrence's water qualifies as very hard. Hard water carries dissolved calcium and magnesium that deposit as limescale inside pipes, water heaters, dishwashers, and washing machines over time. Scale accumulation reduces appliance efficiency and shortens service life. A salt-based water softener is the most effective solution for whole-home protection. For drinking water only, a reverse osmosis system also reduces mineral content significantly.

Explore Lawrence Water Data

Lawrence Water FAQ

Is Lawrence KS tap water safe to drink in 2026?

Lawrence tap water meets EPA federal drinking water standards and scores 78/100 (Good) on PurityMap for 2026. For most healthy adults the water is considered safe but point-of-use filtration adds an important layer of protection.

Does Lawrence KS use chlorine or chloramine for disinfection?

Lawrence uses chloramine as the primary disinfectant with a residual level of 1.4 ppm. Chloramine is harder to remove than free chlorine and requires a catalytic carbon or reverse osmosis filter. Standard Brita-style pitchers will NOT remove chloramine.

How hard is Lawrence KS water and what is the TDS level?

Lawrence water hardness is 10.5 grains per gallon (hard) with a TDS of 370 ppm (poor). This level causes noticeable scale buildup in water heaters kettles and dishwashers. A water softener is recommended to protect plumbing and reduce soap usage.

Has PFAS been found in Lawrence KS drinking water?

Based on available EPA UCMR5 monitoring data as of 2026 PFAS have not been detected above EPA advisory levels in Lawrence drinking water.

What is the best water filter for Lawrence?

Based on Lawrence's water profile, we recommend the AFWFilters 5600sxt 48000 Grain Softener. Lawrence has very hard water (10.5 GPG) and elevated chlorine. A whole-house carbon plus softener system handles both.

Nearby Reports

WichitaKansas — 60/100 Overland ParkKansas — 75/100 TopekaKansas — 75/100 OlatheKansas — 75/100 Kansas CityKansas — 78/100

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Data Sources

EPA SDWIS
EWG Tap Water Database
City of Lawrence Utilities CCR
USGS monitoring data

PurityMap compiles public data. Updated March 2026.

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