Littleton Common Tap Water Quality Report
Littleton Common's water has 10 contaminants above EPA MCLGs. We recommend using a certified water filter.
Utilities
2 Utilities
People Served
29,585
MCL Violations
0
Last Updated
Is Littleton Common Tap Water Safe to Drink?
Littleton Common's water has 10 contaminants above EPA health-based guidelines. 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 Littleton Common's water.
The data below shows test results from 2 water utilities serving 29,585 people in the Littleton Common area. Water quality testing is conducted regularly and reported to the EPA. This report was last updated 2025-09-23.
Boil water advisories are issued by water systems and state agencies, and they change from day to day. Boil water advisories in Massachusetts
Littleton Common Water Service Areas
Get Littleton Common Water Alerts
EPA data, filter picks, and water quality news for MA โ in your inbox.
Free forever. Unsubscribe anytime. We never share your email.
Recommended Water Filters for Littleton Common
Based on Littleton Common's water quality data, these NSF-certified filters are recommended to remove contaminants above EPA MCLGs.

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

Waterdrop
G3 P600
NSF Certified:
Flow Rate
600 gpm
Daily Production
600 gpd
Highlights:
- Space-saving design
- Good contaminant reduction
- NSF-58 certified
Removes 4 contaminants:

Waterdrop
G3 P800
NSF Certified:
Flow Rate
800 gpm
Daily Production
800 gpd
Highlights:
- High water production rate
- Modern design
- No tank needed
- NSF-42, NSF-53, NSF-58, NSF-372 certified
Removes 15 contaminants:
+10 more
Chlorine, Copper, Manganese, Potassium, Selenium, Total Dissolved Solids, Nitrate, Chloride, Sodium, Strontium
Verify Your Water Quality with Independent Testing
With 10 contaminants above EPA health guidelines, independent laboratory testing provides a second opinion and can track changes over time.

SimpleLab
Advanced Home Water Test
$369
Most comprehensive home water test including all standard tests plus additional parameters for ultimate peace of mind.

SimpleLab
Standard Home Water Test
$232
Comprehensive water analysis testing over 200 contaminants including bacteria, heavy metals, and chemical compounds.

Tap Score
PFAS Forever Chemicals Test
$239
Specialized test for PFOA, PFOS, and 24 other forever chemicals. Essential for areas near military bases, airports, or industrial sites.
With 10 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 Littleton Common's water readings can explain
Utility-reported data for Littleton Common includes iron, manganese, turbidity, sulfate and a chlorine-based disinfectant โ the readings behind these common tap water questions. We publish a city-level hardness figure for Littleton Common, 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.
What a water softener costs for Littleton Common's water
Littleton Common's tap water measures 4.2 grains per gallon (72.1 mg/L) โ moderately hard on the USGS scale, below the range where scale is usually worth treating.
Water softener cost for 4.2 gpg water in Littleton Common โ equipment and local installation labour for your ZIP code, with the sizing arithmetic shown in full.
Frequently Asked Questions About Littleton Common Tap Water
Littleton Common's water has 10 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 Littleton Common's water.
Spotted something off on this page?
Residents keep our data honest.
Stay Informed About Your Water Quality
Get EPA reports, filter recommendations, and safety alerts for your area.
Weekly water-quality guidance for your area. Unsubscribe anytime.