Drinking water quality · 2024
· Verified
What's in Brockton, MA tap water
12 contaminants were measured in the Brockton, MA water system's 2024 annual report. Each is shown below against its federal limit.
- Reporting year
- 2024
- Contaminants measured
- 12
- Over federal limit
- 0
- Approaching the limit
- 1
- Service area
- MA
Where your water comes from · EPA SDWIS
Brockton, MA's drinking water comes from surface water, drawn from 3 sources.
Source
- BROCKTON RES.
- HUBBARD AV. WELL
- SILVER LAKE
Treatment
- BROCKTON WATER TREATMENT PLANT
- SILVER LAKE WATER TREATMENT PLANT
- TWINS TANKS
- + 1 more
Distribution
Also buys water from INIMA USA / AQUARIA LLC.
Historical readings · EPA Six-Year Review (2012–2019)
2 contaminants historically over EPA limits in Brockton, MA
Every U.S. public water system reports compliance-monitoring data to EPA. The Six-Year Review releases the 2012–2019 window as a single dataset — here's what your system reported, year by year. Values shown are the highest detection per analyte per year, compared to the federal MCL.
| Contaminant | Worst detection | EPA limit | Years (2012–2019) |
|---|---|---|---|
TTHM worst: 2016 | 0.123 mg/L 1.5× | 0.08 mg/L | '12'13'14'15'16'17'18'19 |
HAA5 worst: 2018 | 0.078 mg/L 1.3× | 0.06 mg/L | '12'13'14'15'16'17'18'19 |
ARSENIC worst: 2015 | 0.006 mg/L within below national p90 | 0.01 mg/L | '15 |
THALLIUM worst: 2017 | 0.001 mg/L within | 0.002 mg/L | '17 |
NITRATE worst: 2018 | 0.54 mg/L within | 10 mg/L | '12'13'14'15'16'17'18'19 |
BARIUM worst: 2017 | 0.053 mg/L within below national p90 | 2 mg/L | '12'13'14'15'16'17'18'19 |
DALAPON worst: 2018 | 0.0012 ug/L within below national p90 | 200 ug/L | '18 |
DBAA worst: 2013 | 0.0008 mg/L | — | '13'14'15'16'17'18'19 |
DCAA worst: 2013 | 0.0128 mg/L | — | '13'14'15'16'17'18'19 |
MBAA worst: 2014 | 0.0017 mg/L | — | '14'15'16'17'18'19 |
MCAA worst: 2014 | 0.0026 mg/L | — | '14'15'16'17'18'19 |
TCAA worst: 2013 | 0.0326 mg/L | — | '13'14'15'16'17'18'19 |
BROMODICHLOROMETHANE worst: 2013 | 0.0263 mg/L | — | '13'14'15'16'17'18'19 |
BROMOFORM worst: 2014 | 0.0081 mg/L | — | '14'15'16'17'18 |
CHLOROFORM worst: 2013 | 0.0957 mg/L | — | '13'14'15'16'17'18'19 |
DIBROMOCHLOROMETHANE worst: 2013 | 0.0068 mg/L | — | '13'14'15'16'17'18'19 |
Metals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| LeadA toxic metal that leaches into water from old service lines, solder, and plumbing fixtures. | 4 ug/L90th percentileAt the tap | 15 ug/LAction level | Within the limit |
| CopperA metal that enters water from corroding household plumbing. | 0.045 mg/L90th percentileAt the tap | 1.3 mg/LAction level | Within the limit |
| SodiumA naturally occurring salt component. | 27 mg/LReported levelSystem-wide | None set | Detected — no federal limit |
PFAS ("forever chemicals")
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| PFAS | 2.2 ng/LReported levelSystem-wide | 20 ng/LMCL | Within the limit |
Disinfection byproducts
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| PerchlorateA chemical used in rocket fuel and fireworks that can also form during disinfection. | 0.13 ug/LReported levelSystem-wide | 2 ug/LMCL | Within the limit |
Disinfectants
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| ChlorineA disinfectant added to drinking water to kill bacteria and viruses. | 0.48–1.35 mg/LRangeSystem-wide | None set | Detected — no federal limit |
Physical & aggregate
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| TOCTotal organic carbon — a measure of organic material dissolved in the water. | 2.077Reported levelSystem-wide | None set | Detected — no federal limit |
| TurbidityA measure of cloudiness from suspended particles in the water. | 0.09 NTUReported levelSystem-wide | None set | Detected — no federal limit |
People also ask about Brockton, MA's water
+Is Brockton, MA tap water safe to drink in 2024?
Every one of the 12 contaminants measured in Brockton, MA's 2024 Consumer Confidence Report is below its federal limit. "Safe" under the EPA's drinking-water standards is health-based, not aesthetic — but by those standards, no measured contaminant in this report exceeds its enforceable threshold. Individual health concerns (e.g. immunocompromised, infant, pregnancy) may warrant additional filtering regardless of compliance.
+What contaminants are in Brockton, MA tap water?
12 contaminants were measured in Brockton, MA's 2024 Consumer Confidence Report, spanning metals, disinfection byproducts, and physical & aggregate. 8 have an enforceable federal limit; the rest are detected but unregulated. Every measured value, in the utility's own units, is on this page.
+Are any contaminants in Brockton, MA tap water approaching the federal limit?
One contaminant is between 80% and 100% of the federal limit in this report: TTHM. Approaching means measured but not in violation — a margin that can close quickly if conditions change.
+Where does the data on this page come from?
Every value is transcribed from Brockton, MA's 2024 Consumer Confidence Report — the annual drinking-water report every U.S. public water utility is required by federal law to publish. The original source document is archived and viewable on this site. A water-quality report covers an entire service area, not a single address.
+How often is Brockton, MA's water quality data updated?
Each U.S. public water utility publishes one Consumer Confidence Report per year, covering the prior calendar year's measurements. This page reflects the 2024 report; a new report will replace it once the utility publishes its next annual update.