Crystal City Tap Water Quality Report
Crystal City's water has 6 contaminants above EPA MCLGs. We recommend using a certified water filter.
Other systems listed for Crystal City with results above guidelines: JEFFERSON COUNTY PWSD 12 (1 above guidelines)
People Served
4,733
Health-based violations since 2020
3
CRYSTAL CITY PWS. EPA SDWA violation data as of Q2 2026 (downloaded 2026-07-09).
Latest sample on file
Jul 2024 · CRYSTAL CITY PWS
Utilities publish newer results in their annual water quality report (Consumer Confidence Report).
Is Crystal City Tap Water Safe to Drink?
We strongly recommend using a certified water filter to reduce exposure: Crystal City's water has 6 contaminants above EPA health-based guidelines. Check our filter recommendations below for NSF-certified options that can remove the specific contaminants found in Crystal City's water.
CRYSTAL CITY PWS, Crystal City's water system, serves 4,733 people. 1 other system is listed for Crystal City. Each system's results are listed under its own name, never added to CRYSTAL CITY PWS's. Water quality testing is conducted regularly and reported to the EPA. The latest sample on file for CRYSTAL CITY PWS is from Jul 2024.
In EPA's 2023–2026 UCMR 5 testing, CRYSTAL CITY PWS measured lithium at up to 31 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
Crystal City Water Service Areas
What these numbers actually mean for Crystal City, MO
We read Crystal 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.
- 6 contaminants above EPA MCLGs, 4 contaminants with an EPA health goal detected in some samples (no level on file) and 3 health-based EPA violations that began after the latest compliance result on file
- 127 results on file
- 23 PFAS compounds on record
Buying a home here? Property Water Report — $49 Emailed within one business day.
Fluoride in Crystal City's water
CRYSTAL CITY PWS
PWSID MO6010198
CRYSTAL CITY PWS reported 0.48 mg/L, below the 0.7 mg/L U.S. Public Health Service recommendation.
JEFFERSON COUNTY PWSD 12
PWSID MO6024304
JEFFERSON COUNTY PWSD 12 reported 0.083 mg/L, below the 0.7 mg/L U.S. Public Health Service recommendation.
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Recommended Water Filters for Crystal City
Based on Crystal City's water quality data, these NSF-certified filters are recommended to remove contaminants above EPA MCLGs.
Solventum Purification Inc.
3MRO401
NSF Certified:
Daily Production
11.48 gpd
Highlights:
- NSF-58 certified reverse osmosis system
- 11.48 GPD production capacity
- Reduces total dissolved solids (TDS) for purer water
Removes 15 contaminants:
+10 more
Copper, Cryptosporidium, Fluoride, Lead, Radium 226, Radium 228, Radium, combined (-226 & -228), Selenium, Total Dissolved Solids, Turbidity
Solventum Purification Inc.
3MRO301
NSF Certified:
Daily Production
11.48 gpd
Highlights:
- NSF-58 certified reverse osmosis system
- 11.48 GPD production capacity
- Reduces total dissolved solids (TDS) for purer water
Removes 15 contaminants:
+10 more
Copper, Cryptosporidium, Fluoride, Lead, Radium 226, Radium 228, Radium, combined (-226 & -228), Selenium, Total Dissolved Solids, Turbidity
AquaTru
Classic
NSF Certified:
Flow Rate
0.04 gpm
Daily Production
600 gpd
Highlights:
- Best overall contaminant reduction score
- Most performance certifications
- Lifetime warranty
- NSF-42, NSF-53, NSF-58, NSF-401 certified
Removes 23 contaminants:
+18 more
Molybdenum, Barium, Chlorine, Arsenic, 83+ contaminants, Calcium, Chloride, Copper, Magnesium, Nitrate, Phosphorus, Sodium, Sulfate, Total Dissolved Solids, Zinc, Total THMs, Chloroform, Nitrate (as N)
AquaTru
Carafe
NSF Certified:
Flow Rate
0.3 gpm
Daily Production
4 gpd
Highlights:
- Verified PFAS reduction
- Glass collection vessel
- Plug-and-play installation
- NSF-53, NSF-42, NSF-58, NSF-401, NSF-372 certified
Removes 17 contaminants:
+12 more
Arsenic, 83+ contaminants, Copper, Total THMs, Chloroform, Chloride, Sulfate, Nitrate (as N), Molybdenum, Barium, Strontium, Uranium
Filters for what Crystal City reported
Verify Your Water Quality with Independent Testing
With 6 contaminants above EPA MCLGs, 4 contaminants with an EPA health goal detected in some samples (no level on file) and 3 health-based EPA violations that began after the latest compliance result on file, independent laboratory testing provides a second opinion and can track changes over time.
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.
With 6 contaminants above health guidelines, you may want to explore water purification options. Learn how to make distilled water at home for applications like humidifiers, CPAP machines, and baby formula.
What Crystal City's water readings can explain
Utility-reported data for Crystal City includes iron, manganese and sulfate — the readings behind these common tap water questions. We publish a city-level hardness figure for Crystal 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 Crystal City? Public-water results do not apply to private wells. See Jefferson County well water testing and USGS risk data — modeled arsenic, nitrate, and the tests to run.
Water softener cost and installation in Crystal City
Crystal City's tap water measures 14.1 grains per gallon (240.7 mg/L) — very hard on the USGS scale, the range where scale on fixtures and appliances is the usual complaint.
Water softener cost for 14.1 gpg water in Crystal 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 Crystal City Tap Water
Crystal City's water has 6 contaminants above EPA MCLGs. We strongly recommend using a certified water filter to reduce exposure to these contaminants. Check our filter recommendations below for NSF-certified options that can remove the specific contaminants found in Crystal City's water. EPA records 3 health-based violations for CRYSTAL CITY PWS that began after its latest compliance result on file (Dec 2020): Maximum Contaminant Level Violation, Average (TTHM), 3 violations, the first beginning on April 1, 2022 and the latest on October 1, 2022. Every such result predates them; its later EPA UCMR 5 results (Jul 2024) screen for unregulated contaminants and cannot show the water met this standard, so 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 CRYSTAL CITY PWS. For a problem with your water now (discolored water, no water, low pressure, a leak), contact CRYSTAL CITY PWS directly.
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