St James Tap Water Quality Report
St James's water has 1 contaminant above EPA MCLGs and 2 above EPA's legal limit (MCL, enforceable from April 26, 2029). Consider using a certified water filter for additional protection.
People Served
4,216
Health-based violations since 2020
0
ST JAMES PWS. EPA SDWA violation data as of Q2 2026 (downloaded 2026-07-09).
Latest sample on file
Jan 2024 · ST JAMES PWS
Utilities publish newer results in their annual water quality report (Consumer Confidence Report).
Is St James 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. St James's water has 1 contaminant above EPA health-based guidelines (MCLGs) and 2 above EPA's legal limit (MCL, enforceable from April 26, 2029).
ST JAMES PWS, St James's water system, serves 4,216 people. 1 other system is listed for St James. Each system's results are listed under its own name, never added to ST JAMES PWS's. Water quality testing is conducted regularly and reported to the EPA. The latest sample on file for ST JAMES PWS is from Jan 2024.
Boil water advisories are issued by water systems and state agencies, and they change from day to day. Boil water advisories in Missouri
St James Water Service Areas
What these numbers actually mean for St James, MO
We read St James, 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.
- 1 contaminant above EPA MCLGs and 2 above EPA's legal limit (MCL, enforceable from April 26, 2029) and 5 contaminants with an EPA health goal detected in some samples (no level on file)
- 159 results on file
- 23 PFAS compounds on record
Buying a home here? Property Water Report — $49 Emailed within one business day.
Fluoride in St James's water
ST JAMES PWS
PWSID MO3010712
ST JAMES PWS reported 0.09 mg/L, below the 0.7 mg/L U.S. Public Health Service recommendation.
GREAT CIRCLE
PWSID MO3069013
GREAT CIRCLE reported no detectable fluoride.
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Recommended Water Filters for St James
Based on St James's water quality data, these NSF-certified filters are recommended to remove contaminants above EPA's health goals (MCLGs) or legal limits (MCL).
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
Verify Your Water Quality with Independent Testing
With 1 contaminant above EPA MCLGs and 2 above EPA's legal limit (MCL, enforceable from April 26, 2029) and 5 contaminants with an EPA health goal detected in some samples (no level 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
PFAS Forever Chemicals Test
$339.95
Specialized test for PFOA, PFOS, and 24 other forever chemicals. Essential for areas near military bases, airports, or industrial sites.
Tap Score
Advanced Microplastics Test
$829
Cutting-edge testing for microplastics particles in drinking water using advanced laboratory techniques.
With 3 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 St James's water readings can explain
Utility-reported data for St James includes iron, manganese and sulfate — the readings behind these common tap water questions. We publish a city-level hardness figure for St James, 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 St James? Public-water results do not apply to private wells. See Phelps County well water testing and USGS risk data — modeled arsenic, nitrate, and the tests to run.
Water softener cost and installation in St James
St James's tap water measures 22.4 grains per gallon (383.6 mg/L) — very hard on the USGS scale, the range where scale on fixtures and appliances is the usual complaint.
Water softener cost for 22.4 gpg water in St James — 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 St James Tap Water
St James's water has 1 contaminant above EPA MCLGs and 2 above EPA's legal limit (MCL, enforceable from April 26, 2029). 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 ST JAMES PWS. For a problem with your water now (discolored water, no water, low pressure, a leak), contact ST JAMES PWS directly.
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