Tap Water Quality Report
Tap water quality in COLONIE (T), New York
Tap water in COLONIE (T), New York receives a grade of F (59/100) from TapWaterSafety.org. It's served by LATHAM WATER DISTRICT. The most significant water quality concerns are: PFAS contamination; Haloacetic acids (HAA9) significantly above health guideline; Haloacetic acids (HAA5) significantly above health guideline; Total trihalomethanes (TTHMs) significantly above health guideline. Data sources: EPA SDWIS, EPA ECHO, EWG Tap Water Database.
What's in COLONIE (T)'s tap water
Top water quality concerns identified by the EPA and Environmental Working Group across the utility serving COLONIE (T).
PFAS contamination
Severe concernPerfluorooctane sulfonate (PFOS) detected. PFAS are persistent chemicals linked to cancer and immune effects with no known safe exposure threshold.
Haloacetic acids (HAA9) significantly above health guideline
Moderate concernHaloacetic acids (HAA9) detected at 36.7 ppb, 611x above the EWG health guideline of 0.06 ppb.
Haloacetic acids (HAA5) significantly above health guideline
Moderate concernHaloacetic acids (HAA5) detected at 32.3 ppb, 323x above the EWG health guideline of 0.1 ppb.
Total trihalomethanes (TTHMs) significantly above health guideline
Moderate concernTotal trihalomethanes (TTHMs) detected at 48.3 ppb, 322x above the EWG health guideline of 0.15 ppb.
Recommended filters for COLONIE (T)
Filters matched to the specific contaminants in COLONIE (T)'s water supply.
Reverse Osmosis or NSF P473 certified carbon
$80-$750Activated carbon and RO are the only technologies proven to remove PFAS at certified levels.
Carbon block (NSF/ANSI 42 + 53)
$40-$750Activated carbon is highly effective for disinfection byproducts like TTHM and HAA5.
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 COLONIE (T)'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 |
|---|---|---|---|---|---|---|---|---|
| Haloacetic acids (HAA9) Disinfection byproduct |
36.7 ppb | 0.06 | — | — | — | — | — | 611× over |
| Haloacetic acids (HAA5) Disinfection byproduct |
32.3 ppb | 0.1 | 60.0 | 60 | — | — | — | 323× over |
| Total trihalomethanes (TTHMs) Disinfection byproduct |
48.3 ppb | 0.15 | 80.0 | 100 | — | — | — | 322× over |
| Bromodichloromethane Disinfection byproduct |
9.79 ppb | 0.06 | — | — | — | — | — | 163× over |
| Trichloroacetic acid Disinfection byproduct |
15.6 ppb | 0.1 | — | — | — | — | — | 156× over |
| Chloroform Disinfection byproduct |
35.7 ppb | 0.4 | — | — | — | — | — | 89× over |
| Dichloroacetic acid Disinfection byproduct |
12.9 ppb | 0.2 | — | — | — | — | — | 65× over |
| Dibromochloromethane Disinfection byproduct |
2.77 ppb | 0.1 | — | — | — | — | — | 28× over |
| Dibromoacetic acid Disinfection byproduct |
0.365 ppb | 0.03 | — | — | — | — | — | 12× over |
| Radium, combined (-226 and -228) Radiological |
0.57 pCi/L | 0.05 | 5.0 | — | — | — | — | 11× over |
| Chlorite Disinfection byproduct |
319.2 ppb | 50.0 | 1000.0 | — | — | — | — | 6.4× over |
| Chromium (hexavalent) Heavy metal |
0.0904 ppb | 0.02 | — | — | — | — | — | 4.5× over |
| Perfluorooctane sulfonate (PFOS) PFAS |
1.04 ppt | 0.3 | 4.0 | 100 | 100 | 1 | — | 3.5× over |
| Nitrate Inorganic |
0.345 ppm | 0.14 | 10.0 | 11.3 | 11.3 | 10 | — | 2.5× over |
| Chlorate Disinfection byproduct |
243.7 ppb | 210.0 | — | — | — | — | — | 1.2× over |
| Barium Heavy metal |
120.1 ppb | 700.0 | 2000.0 | — | 1300 | 2000 | — | Below guideline |
| Monochloroacetic acid Disinfection byproduct |
3.27 ppb | 53.0 | — | — | — | — | — | Below guideline |
| Vanadium Other |
0.6 ppb | 21.0 | — | — | — | — | — | Below guideline |
| Uranium Radiological |
0.01 pCi/L | 0.43 | 20.0 | 30 | 30 | 0.43 | — | Below guideline |
| Manganese Heavy metal |
2.17 ppb | 100.0 | — | 50 | 80 | — | — | Below guideline |
| Monobromoacetic acid Disinfection byproduct |
0.11 ppb | 25.0 | — | — | — | — | — | Below guideline |
| Perfluorobutanoic Acid (PFBA) PFAS |
0.689 ppt | 1000.0 | — | — | — | — | — | Below guideline |
| Perfluoropentanoic Acid (PFPeA) PFAS |
0.25 ppt | 1000.0 | — | — | — | — | — | Below guideline |
| Strontium Radiological |
0.273 ppb | 1500.0 | — | — | — | — | — | Below guideline |
| Perfluorohexanoic Acid (PFHxA) PFAS |
0.128 ppt | 1000.0 | — | — | — | — | — | Below guideline |
| Fluoride Inorganic |
0.0367 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 LATHAM WATER DISTRICT.