South Williamsport Tap Water Quality Report
South Williamsport's water has 3 contaminants above EPA MCLGs. Consider using a certified water filter for additional protection.
Water system
WILLIAMSPORT MUN WATER AUTH
People Served
51,000
Health-based violations since 2020
0
WILLIAMSPORT MUN WATER AUTH. EPA SDWA violation data as of Q2 2026 (downloaded 2026-07-09).
Latest sample on file
Jan 2025 · WILLIAMSPORT MUN WATER AUTH
Utilities publish newer results in their annual water quality report (Consumer Confidence Report).
Is South Williamsport 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. South Williamsport's water has 3 contaminants above EPA health-based guidelines (MCLGs), while it meets federal legal limits.
WILLIAMSPORT MUN WATER AUTH, South Williamsport's water system, serves 51,000 people. Water quality testing is conducted regularly and reported to the EPA. The latest sample on file for WILLIAMSPORT MUN WATER AUTH is from Jan 2025.
Boil water advisories are issued by water systems and state agencies, and they change from day to day. Boil water advisories in Pennsylvania
South Williamsport Water Service Areas
What these numbers actually mean for South Williamsport, PA
We read South Williamsport, PA’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.
- 3 contaminants above EPA MCLGs and 5 contaminants with an EPA health goal detected in some samples (no level on file)
- 106 results on file
- 23 PFAS compounds on record
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Recommended Water Filters for South Williamsport
Based on South Williamsport'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
Filters for what South Williamsport reported
Verify Your Water Quality with Independent Testing
With 3 contaminants above EPA MCLGs 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
Haloacetic Acids (HAA9) Test
$275
Tests for disinfection byproducts formed when chlorine reacts with organic matter in water treatment.
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.
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 South Williamsport's water readings can explain
Utility-reported data for South Williamsport includes a chlorine-based disinfectant — the readings behind these common tap water questions. Each page starts with the hot-tap and cold-tap check, then shows what your own water system reported.
On a private well near South Williamsport? Public-water results do not apply to private wells. See Lycoming County well water testing and USGS risk data — modeled arsenic, nitrate, and the tests to run.
Frequently Asked Questions About South Williamsport Tap Water
South Williamsport's water has 3 contaminants above EPA MCLGs. While the water meets federal legal limits, 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 WILLIAMSPORT MUN WATER AUTH. For a problem with your water now (discolored water, no water, low pressure, a leak), contact WILLIAMSPORT MUN WATER AUTH directly.
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