Water Quality Report · Updated October 07, 2026
INIMA USA / AQUARIA LLC
INIMA USA / AQUARIA LLC delivers tap water graded C (66/100) by TapWaterSafety.org. The utility serves approximately 105,643 residents in DIGHTON, Massachusetts using surface water. The most significant water quality concerns are: PFAS contamination; Perfluorohexane sulfonate (PFHXS) significantly above health guideline; Total trihalomethanes (TTHMs) significantly above health guideline; Trichloroacetic acid significantly above health guideline. For questions, the utility can be reached at 5088800099.
Is DIGHTON tap water safe to drink?
INIMA USA / AQUARIA LLC delivers tap water that earns a grade of C (66/100) from TapWaterSafety.org — an average rating, with several contaminants above health guidelines but generally compliant with US legal limits.
The utility serves 105,643 residents in DIGHTON, drawing from surface water.
Public testing data identifies 11 contaminants in this water above EWG's health-based guidelines, including: Perfluorohexane sulfonate (PFHXS), Total trihalomethanes (TTHMs), Trichloroacetic acid, Haloacetic acids (HAA5), Bromodichloromethane, Chloroform, Perfluorononanoic acid (PFNA), Dibromochloromethane, Perfluorooctanoic acid (PFOA), Chromium (hexavalent), Perfluorooctane sulfonate (PFOS). For most residents, a properly certified home filter at the kitchen tap is the most cost-effective way to reduce exposure to whatever's in your water. See our filter recommendations below, matched specifically to this utility's contaminant profile.
EPA compliance record
Official U.S. EPA records for INIMA USA / AQUARIA LLC (system ID MA4076004) 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.
Quick actions for DIGHTON residents
Top concerns in this water
Based on the most recent EPA and EWG data, these are the most significant water quality issues for INIMA USA / AQUARIA LLC.
PFAS contamination
Severe concernPerfluorononanoic acid (PFNA), 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 0.213 ppt, 213x above the EWG health guideline of 0.001 ppt.
Total trihalomethanes (TTHMs) significantly above health guideline
Moderate concernTotal trihalomethanes (TTHMs) detected at 27.0 ppb, 180x above the EWG health guideline of 0.15 ppb.
Trichloroacetic acid significantly above health guideline
Moderate concernTrichloroacetic acid detected at 9.62 ppb, 96x above the EWG health guideline of 0.1 ppb.
Contact INIMA USA / AQUARIA LLC
Reach the utility directly for service issues, water quality concerns, or to request your Consumer Confidence Report.
General Contact
Treatment Plant
Recommended water filters for DIGHTON
Filters matched to the specific contaminants in this 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 like TTHM. Look for NSF/ANSI 53 VOC or chloroform reduction.
Disclosure: TapWaterSafety earns a commission from purchases made through these links. This does not influence our scoring methodology or filter selection.
Score breakdown
This utility's overall score of 66/100 breaks down across five weighted components. Read the full methodology →
Contaminants detected — international standards comparison
Every contaminant detected, compared side-by-side against US EPA legal limits, the EU Drinking Water Directive (2020/2184), WHO Guidelines, and California's Public Health Goal (the strictest US benchmark). 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 |
0.213 ppt | 0.001 | 10.0 | — | — | — | — | 213× over |
| Total trihalomethanes (TTHMs) Disinfection byproduct |
27.0 ppb | 0.15 | 80.0 | 100 | — | — | — | 180× over |
| Trichloroacetic acid Disinfection byproduct |
9.62 ppb | 0.1 | — | — | — | — | — | 96× over |
| Haloacetic acids (HAA5) Disinfection byproduct |
6.49 ppb | 0.1 | 60.0 | 60 | — | — | — | 65× over |
| Bromodichloromethane Disinfection byproduct |
2.42 ppb | 0.06 | — | — | — | — | — | 40× over |
| Chloroform Disinfection byproduct |
8.04 ppb | 0.4 | — | — | — | — | — | 20× over |
| Perfluorononanoic acid (PFNA) PFAS |
0.077 ppt | 0.006 | 10.0 | — | — | — | — | 13× over |
| Dibromochloromethane Disinfection byproduct |
0.92 ppb | 0.1 | — | — | — | — | — | 9.2× over |
| Perfluorooctanoic acid (PFOA) PFAS |
0.566 ppt | 0.09 | 4.0 | 100 | 100 | 0.007 | — | 6.3× over |
| Chromium (hexavalent) Heavy metal |
0.0425 ppb | 0.02 | — | — | — | — | — | 2.1× over |
| Perfluorooctane sulfonate (PFOS) PFAS |
0.555 ppt | 0.3 | 4.0 | 100 | 100 | 1 | — | 1.9× over |
| Chlorate Disinfection byproduct |
209.6 ppb | 210.0 | — | — | — | — | — | Below guideline |
| Nitrate Inorganic |
0.11 ppm | 0.14 | 10.0 | 11.3 | 11.3 | 10 | — | Below guideline |
| Manganese Heavy metal |
4.0 ppb | 100.0 | — | 50 | 80 | — | — | Below guideline |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) Other |
0.092 ppt | 9.0 | 10.0 | — | — | — | — | Below guideline |
| Vanadium Other |
0.138 ppb | 21.0 | — | — | — | — | — | Below guideline |
| Perfluorohexanoic Acid (PFHxA) PFAS |
0.394 ppt | 1000.0 | — | — | — | — | — | Below guideline |
| Perfluoroheptanoic acid (PFHPA) PFAS |
0.189 ppt | 1000.0 | — | — | — | — | — | Below guideline |
| Perfluorobutane sulfonate (PFBS) PFAS |
0.159 ppt | 2000.0 | — | — | — | — | — | Below guideline |
| Strontium Radiological |
0.0205 ppb | 1500.0 | — | — | — | — | — | 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 (4th ed.), California OEHHA PHGs, EWG Tap Water Database.
INIMA USA / AQUARIA LLC service area
This water system serves 1 community in Bristol County, Massachusetts. Click any city for its dedicated tap water quality page.
Find the right filter for DIGHTON water
Browse filter categories by water-quality concern. Each option below is NSF-certified for the matched contaminant type.