Foster Tap Water Quality Report
Foster's water has 2 contaminants above EPA MCLGs. Consider using a certified water filter for additional protection.
Water system
BATES COUNTY PWSD 4
People Served
2,160
Health-based violations since 2020
1
BATES COUNTY PWSD 4. EPA SDWA violation data as of Q2 2026 (downloaded 2026-07-09).
Latest sample on file
Dec 2020 · BATES COUNTY PWSD 4
Utilities publish newer results in their annual water quality report (Consumer Confidence Report).
Is Foster 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. Foster's water has 2 contaminants above EPA health-based guidelines (MCLGs).
BATES COUNTY PWSD 4, Foster's water system, serves 2,160 people. Water quality testing is conducted regularly and reported to the EPA. The latest sample on file for BATES COUNTY PWSD 4 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
Foster Water Service Areas
What these numbers actually mean for Foster, MO
We read Foster, 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, 1 contaminant with an EPA health goal detected in some samples (no level on file) and 1 health-based EPA violation that began after the latest compliance result on file
- 16 results on file
- No PFAS results on record
Buying a home here? Property Water Report — $49 Emailed within one business day.
Fluoride in Foster's water
BATES COUNTY PWSD 4
PWSID MO1024033
No fluoride level in our data for BATES COUNTY PWSD 4. Your utility's annual water quality report (CCR) lists it.
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Recommended Water Filters for Foster
Based on Foster'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 Foster's water readings can explain
We publish a city-level hardness figure for Foster, 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 Foster? Public-water results do not apply to private wells. See Bates County well water testing and USGS risk data — modeled arsenic, nitrate, and the tests to run.
Water softener cost and installation in Foster
Foster's tap water has an estimated 10.6 grains per gallon (180.5 mg/L, county sampling in Bates County) — very hard on the USGS scale, the range where scale on fixtures and appliances is the usual complaint.
Water softener cost for an estimated 10.6 gpg water in Foster — 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 Foster Tap Water
Foster'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 a health-based violation for BATES COUNTY PWSD 4 that began after its latest compliance result on file (Dec 2020): Maximum Contaminant Level Violation, Average (TTHM), which began on January 1, 2025. Every such result predates it, 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 BATES COUNTY PWSD 4. For a problem with your water now (discolored water, no water, low pressure, a leak), contact BATES COUNTY PWSD 4 directly.
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