Jefferson City Tap Water Quality Report
Jefferson City's water has 2 contaminants above EPA MCLGs. Consider using a certified water filter for additional protection.
2 other systems serving parts of Jefferson City report results above guidelines — check which system bills you. MO AMERICAN JEFFERSON CITY NORTH (2 above guidelines), COLE COUNTY PWSD 1 (3 above guidelines)
Other systems listed for Jefferson City with results above guidelines: COLE COUNTY PWSD 4 (4 above guidelines), CALLAWAY COUNTY PWSD 1 (3 above guidelines)
Water system
MO AMERICAN JEFFERSON CITY DISTRICT
2 other systems also serve parts of Jefferson City. 3 other systems are listed for Jefferson City. See their figures
People Served
30,075
Health-based violations since 2020
0
MO AMERICAN JEFFERSON CITY DISTRICT. EPA SDWA violation data as of Q2 2026 (downloaded 2026-07-09).
Latest sample on file
Jul 2024 · MO AMERICAN JEFFERSON CITY DISTRICT
Utilities publish newer results in their annual water quality report (Consumer Confidence Report).
Is Jefferson City 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. Jefferson City's water has 2 contaminants above EPA health-based guidelines (MCLGs), while it meets federal legal limits.
MO AMERICAN JEFFERSON CITY DISTRICT, Jefferson City's water system, serves 30,075 people. 2 other systems also serve parts of Jefferson City. 3 other systems are listed for Jefferson City. Each system's results are listed under its own name, never added to MO AMERICAN JEFFERSON CITY DISTRICT's. Water quality testing is conducted regularly and reported to the EPA. The latest sample on file for MO AMERICAN JEFFERSON CITY DISTRICT is from Jul 2024.
In EPA's 2023–2026 UCMR 5 testing, MO AMERICAN JEFFERSON CITY DISTRICT measured lithium at up to 92.7 µg/L, which EPA counts as above its health reference level of 10 µg/L. That level is a screening value EPA uses to decide what to study further, not a legal limit, and this result does not change this page's water-quality summary.
Boil water advisories are issued by water systems and state agencies, and they change from day to day. Boil water advisories in Missouri
Jefferson City Water Service Areas
What these numbers actually mean for Jefferson City, MO
We read Jefferson City, MO’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.
- 2 contaminants above EPA MCLGs and 9 contaminants with an EPA health goal detected in some samples (no level on file)
- 200 results on file
- 23 PFAS compounds on record
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Recommended Water Filters for Jefferson City
Based on Jefferson City's water quality data, these NSF-certified filters are recommended to remove contaminants above EPA MCLGs.
Culligan
ZeroWater
NSF Certified:
Flow Rate
1.9 gpm
Daily Production
1 gpd
Highlights:
- Compact design
- Easy to set up
- Affordable
- NSF-42, NSF-53, NSF-401 certified
Removes 19 contaminants:
+14 more
Strontium, Molybdenum, Fluoride, Uranium, Lead, Total PFAS, Chlorine, 25, Phosphorus, Bicarbonate, Calcium, Carbonate, Magnesium, Sodium
Santevia
Bath Filter
NSF Certified:
Flow Rate
0.36 gpm
Highlights:
- Organic cotton design reduces plastic used in construction
- Affordable upfront & ongoing cost
- The only bath filter that removed 100% chlorine with “normal” faster faucet flow
Removes 1 contaminants:
Waterdrop
A1
NSF Certified:
Flow Rate
1 gpm
Highlights:
- Performance certified
- Lower price than Philips
- Hot water dispensing
- Compact design
Removes 5 contaminants:
Whirlpool Corporation
W11256135
NSF Certified:
Capacity
1001 gal
Filter Life
3 mo
Flow Rate
0.7 gpm
Removes 19 contaminants:
+14 more
Benzene, Carbofuran, Chlorine (Free), Chlorine (Total), Chlorine Dioxide, Chlorobenzene, Cryptosporidium, Ethylbenzene, Lead, Mercury, Metolachlor, Tetrachloroethylene, Toxaphene, Turbidity
Filters for what Jefferson City reported
Test Your Water Quality
Professional laboratory testing provides accurate, detailed analysis of your drinking water.
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
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Cutting-edge testing for microplastics particles in drinking water using advanced laboratory techniques.
What Jefferson City's water readings can explain
Utility-reported data for Jefferson City includes sulfate and a chlorine-based disinfectant — the readings behind these common tap water questions. We publish a city-level hardness figure for Jefferson City, 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 Jefferson City? Public-water results do not apply to private wells. See Cole County well water testing and USGS risk data — modeled arsenic, nitrate, and the tests to run.
Water softener cost and installation in Jefferson City
Jefferson City's tap water measures 8.0 grains per gallon (137.1 mg/L) — hard on the USGS scale, the range where scale on fixtures and appliances is the usual complaint.
Water softener cost for 8.0 gpg water in Jefferson City — 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 Missouri as a whole, read water softener cost in Missouri — priced against the plumber wage published for the state.
Frequently Asked Questions About Jefferson City Tap Water
Jefferson City's water has 2 contaminants 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.
Spotted something off on this page?
Residents keep our data honest.
This form corrects our data; it does not reach MO AMERICAN JEFFERSON CITY DISTRICT. For a problem with your water now (discolored water, no water, low pressure, a leak), contact MO AMERICAN JEFFERSON CITY DISTRICT directly.
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