Unionville Tap Water Quality Report
Unionville's water has 2 contaminants above EPA MCLGs. Consider using a certified water filter for additional protection.
2 other systems serving parts of Unionville report results above guidelines — check which system bills you. LAKE THUNDERHEAD (2 above guidelines), PUTNAM COUNTY PWSD 1 (2 above guidelines)
People Served
1,735
Health-based violations since 2020
2
UNIONVILLE PWS. EPA SDWA violation data as of Q2 2026 (downloaded 2026-07-09).
Latest sample on file
Dec 2020 · UNIONVILLE PWS
Utilities publish newer results in their annual water quality report (Consumer Confidence Report).
Is Unionville 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. Unionville's water has 2 contaminants above EPA health-based guidelines (MCLGs).
UNIONVILLE PWS, Unionville's water system, serves 1,735 people. 2 other systems also serve parts of Unionville. Each system's results are listed under its own name, never added to UNIONVILLE PWS's. Water quality testing is conducted regularly and reported to the EPA. The latest sample on file for UNIONVILLE PWS is from Dec 2020.
Boil water advisories are issued by water systems and state agencies, and they change from day to day. Boil water advisories in Missouri
Unionville Water Service Areas
What these numbers actually mean for Unionville, MO
We read Unionville, 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, 2 contaminants with an EPA health goal detected in some samples (no level on file) and 2 health-based EPA violations that began after the latest compliance result on file
- 141 results on file
- No PFAS results on record
Buying a home here? Property Water Report — $49 Emailed within one business day.
Fluoride in Unionville's water
PUTNAM COUNTY PWSD 1
PWSID MO2024495
No fluoride level in our data for PUTNAM COUNTY PWSD 1. Your utility's annual water quality report (CCR) lists it.
UNIONVILLE PWS
PWSID MO2010804
UNIONVILLE PWS reported 0.985 mg/L, at or above the 0.7 mg/L U.S. Public Health Service recommendation and below the 1.5 mg/L WHO guideline value and NTP neurodevelopment review level.
LAKE THUNDERHEAD
PWSID MO2036165
No fluoride level in our data for LAKE THUNDERHEAD. Your utility's annual water quality report (CCR) lists it.
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Recommended Water Filters for Unionville
Based on Unionville'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
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
$829
Cutting-edge testing for microplastics particles in drinking water using advanced laboratory techniques.
What Unionville's water readings can explain
Utility-reported data for Unionville includes sulfate — the readings behind these common tap water questions. We publish a city-level hardness figure for Unionville, 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 Unionville? Public-water results do not apply to private wells. See Putnam County well water testing and USGS risk data — modeled arsenic, nitrate, and the tests to run.
Water softener cost and installation in Unionville
Unionville's tap water measures 8.4 grains per gallon (144.3 mg/L) — hard on the USGS scale, the range where scale on fixtures and appliances is the usual complaint.
Water softener cost for 8.4 gpg water in Unionville — 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 Unionville Tap Water
Unionville's water has 2 contaminants above EPA MCLGs. We recommend using a certified water filter for additional protection, especially for vulnerable populations like children, pregnant women, and those with compromised immune systems. EPA records 2 health-based violations for UNIONVILLE PWS that began after its latest compliance result on file (Dec 2020): Single Turbidity Exceed (Enhanced SWTR) (Interim Enhanced Surface Water Treatment Rule), which began on July 1, 2021; Monthly Turbidity Exceed (Enhanced SWTR) (Interim Enhanced Surface Water Treatment Rule), which began on July 1, 2021. Every such result predates them, so none can show the water met the standard since, and this page does not call the water safe.
Spotted something off on this page?
Residents keep our data honest.
This form corrects our data; it does not reach UNIONVILLE PWS. For a problem with your water now (discolored water, no water, low pressure, a leak), contact UNIONVILLE PWS directly.
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