Tap Water Quality Report
Tap water quality in LYNN, Massachusetts
Tap water in LYNN, Massachusetts receives a grade of D (60/100) from TapWaterSafety.org. It's served by LYNN WATER AND SEWER COMM. The most significant water quality concerns are: PFAS contamination; Perfluorohexane sulfonate (PFHXS) significantly above health guideline; Haloacetic acids (HAA9) significantly above health guideline; Total trihalomethanes (TTHMs) significantly above health guideline. Data sources: EPA SDWIS, EPA ECHO, EWG Tap Water Database.
What's in LYNN's tap water
Top water quality concerns identified by the EPA and Environmental Working Group across the utility serving LYNN.
PFAS contamination
Severe concernPerfluorooctane sulfonate (PFOS), Perfluorooctanoic acid (PFOA) detected. PFAS are persistent chemicals linked to cancer and immune effects with no known safe exposure threshold.
Perfluorohexane sulfonate (PFHXS) significantly above health guideline
Moderate concernPerfluorohexane sulfonate (PFHXS) detected at 1.11 ppt, 1114x above the EWG health guideline of 0.001 ppt.
Haloacetic acids (HAA9) significantly above health guideline
Moderate concernHaloacetic acids (HAA9) detected at 22.4 ppb, 373x above the EWG health guideline of 0.06 ppb.
Total trihalomethanes (TTHMs) significantly above health guideline
Moderate concernTotal trihalomethanes (TTHMs) detected at 41.5 ppb, 277x above the EWG health guideline of 0.15 ppb.
EPA compliance record
Official U.S. EPA records for LYNN WATER AND SEWER COMM (system ID MA3163000) for the last 3 years. Checked 2026-10-07.
Source: U.S. EPA Enforcement and Compliance History Online (ECHO), from the Safe Drinking Water Information System. See EPA's full report.
Recommended filters for LYNN
Filters matched to the specific contaminants in LYNN's water supply.
Filter certified for PFOA/PFOS (NSF/ANSI 53 or 58)
$180-$750Reverse osmosis and some carbon block filters reduce PFAS. Look for certification to NSF/ANSI 53 or 58 for PFOA/PFOS.
Carbon filter certified for VOCs (NSF/ANSI 53)
$180-$599Activated carbon is effective for disinfection byproducts. Look for NSF/ANSI 53 VOC reduction.
Disclosure: TapWaterSafety earns a commission from purchases made through these links. This does not influence our scoring methodology or filter selection.
All contaminants detected in LYNN's tap water
Every contaminant identified, compared side-by-side against US EPA legal limits, the EU Drinking Water Directive (2020/2184), WHO Guidelines, and California's Public Health Goal. Why we show multiple standards →
| Contaminant | Detected | EWG US health-based |
EPA US legal |
EU DWD Europe |
WHO global |
CA PHG strictest US |
Tested sample year |
Status |
|---|---|---|---|---|---|---|---|---|
| Perfluorohexane sulfonate (PFHXS) PFAS |
1.11 ppt | 0.001 | 10.0 | — | — | — | — | 1114× over |
| Haloacetic acids (HAA9) Disinfection byproduct |
22.4 ppb | 0.06 | — | — | — | — | — | 373× over |
| Total trihalomethanes (TTHMs) Disinfection byproduct |
41.5 ppb | 0.15 | 80.0 | 100 | — | — | — | 277× over |
| Bromodichloromethane Disinfection byproduct |
11.8 ppb | 0.06 | — | — | — | — | — | 197× over |
| Haloacetic acids (HAA5) Disinfection byproduct |
16.3 ppb | 0.1 | 60.0 | 60 | — | — | — | 163× over |
| Trichloroacetic acid Disinfection byproduct |
8.63 ppb | 0.1 | — | — | — | — | — | 86× over |
| Dibromochloromethane Disinfection byproduct |
5.28 ppb | 0.1 | — | — | — | — | — | 53× over |
| Chloroform Disinfection byproduct |
18.4 ppb | 0.4 | — | — | — | — | — | 46× over |
| Dichloroacetic acid Disinfection byproduct |
7.0 ppb | 0.2 | — | — | — | — | — | 35× over |
| Perfluorooctanoic acid (PFOA) PFAS |
2.79 ppt | 0.09 | 4.0 | 100 | 100 | 0.007 | — | 31× over |
| Dibromoacetic acid Disinfection byproduct |
0.651 ppb | 0.03 | — | — | — | — | — | 22× over |
| Perfluorooctane sulfonate (PFOS) PFAS |
1.77 ppt | 0.3 | 4.0 | 100 | 100 | 1 | — | 5.9× over |
| Chromium (hexavalent) Heavy metal |
0.0688 ppb | 0.02 | — | — | — | — | — | 3.4× over |
| Chlorite Disinfection byproduct |
127.8 ppb | 50.0 | 1000.0 | — | — | — | — | 2.6× over |
| Nitrate Inorganic |
0.2 ppm | 0.14 | 10.0 | 11.3 | 11.3 | 10 | — | 1.4× over |
| Chlorate Disinfection byproduct |
153.8 ppb | 210.0 | — | — | — | — | — | Below guideline |
| Bromoform Disinfection byproduct |
0.186 ppb | 0.5 | — | — | — | — | — | Below guideline |
| Aluminum Heavy metal |
31.5 ppb | 600.0 | — | 200 | — | 600 | — | Below guideline |
| Perchlorate Disinfection byproduct |
0.0427 ppb | 1.0 | — | — | — | — | — | Below guideline |
| Manganese Heavy metal |
2.41 ppb | 100.0 | — | 50 | 80 | — | — | Below guideline |
| Vanadium Other |
0.475 ppb | 21.0 | — | — | — | — | — | Below guideline |
| Barium Heavy metal |
14.3 ppb | 700.0 | 2000.0 | — | 1300 | 2000 | — | Below guideline |
| Chloromethane Other |
0.0197 ppb | 2.69 | — | — | — | — | — | Below guideline |
| Perfluoropentanoic Acid (PFPeA) PFAS |
4.6 ppt | 1000.0 | — | — | — | — | — | Below guideline |
| Perfluorohexanoic Acid (PFHxA) PFAS |
3.59 ppt | 1000.0 | — | — | — | — | — | Below guideline |
| Perfluorobutanoic Acid (PFBA) PFAS |
2.68 ppt | 1000.0 | — | — | — | — | — | Below guideline |
| Perfluoroheptanoic acid (PFHPA) PFAS |
1.22 ppt | 1000.0 | — | — | — | — | — | Below guideline |
| Perfluorobutane sulfonate (PFBS) PFAS |
2.01 ppt | 2000.0 | — | — | — | — | — | Below guideline |
| Monochloroacetic acid Disinfection byproduct |
0.0281 ppb | 53.0 | — | — | — | — | — | Below guideline |
| Strontium Radiological |
0.0641 ppb | 1500.0 | — | — | — | — | — | Below guideline |
| Fluoride Inorganic |
0.613 ppm | — | 4.0 | 1.5 | 1.5 | — | — | Below guideline |
All values in the unit of the detected level. Red cells indicate the detected level exceeds that standard. Some contaminants have limits in some jurisdictions but not others (shown as —). The "Tested" column shows the year each contaminant sample was collected.
Sources: US EPA, EU Drinking Water Directive 2020/2184, WHO Guidelines, California OEHHA PHGs, EWG Tap Water Database.
Treatment plant contact info
For service issues, water quality concerns, or to request a Consumer Confidence Report from LYNN WATER AND SEWER COMM.