Tap Water Quality Report
Tap water quality in REHOBOTH BEACH, Delaware
Tap water in REHOBOTH BEACH, Delaware receives a grade of D (64/100) from TapWaterSafety.org. It's served by REHOBOTH PUMP DISTRICT (TUI). The most significant water quality concerns are: PFAS contamination; Chromium (hexavalent) significantly above health guideline; Total trihalomethanes (TTHMs) significantly above health guideline; Nitrate significantly above health guideline. Data sources: EPA SDWIS, EPA ECHO, EWG Tap Water Database.
What's in REHOBOTH BEACH's tap water
Top water quality concerns identified by the EPA and Environmental Working Group across the utility serving REHOBOTH BEACH.
PFAS contamination
Severe concernPerfluorooctanoic acid (PFOA) detected. PFAS are persistent chemicals linked to cancer and immune effects with no known safe exposure threshold.
Chromium (hexavalent) significantly above health guideline
Moderate concernChromium (hexavalent) detected at 0.707 ppb, 35x above the EWG health guideline of 0.02 ppb.
Total trihalomethanes (TTHMs) significantly above health guideline
Moderate concernTotal trihalomethanes (TTHMs) detected at 4.88 ppb, 33x above the EWG health guideline of 0.15 ppb.
Nitrate significantly above health guideline
Moderate concernNitrate detected at 3.08 ppm, 22x above the EWG health guideline of 0.14 ppm.
Recommended filters for REHOBOTH BEACH
Filters matched to the specific contaminants in REHOBOTH BEACH'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 REHOBOTH BEACH'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 |
|---|---|---|---|---|---|---|---|---|
| Chromium (hexavalent) Heavy metal |
0.707 ppb | 0.02 | — | — | — | — | — | 35× over |
| Total trihalomethanes (TTHMs) Disinfection byproduct |
4.88 ppb | 0.15 | 80.0 | 100 | — | — | — | 33× over |
| Nitrate Inorganic |
3.08 ppm | 0.14 | 10.0 | 11.3 | 11.3 | 10 | — | 22× over |
| Nitrate and nitrite Inorganic |
3.08 ppm | 0.14 | 10.0 | 11.3 | 11.3 | 10 | — | 22× over |
| Bromodichloromethane Disinfection byproduct |
1.06 ppb | 0.06 | — | — | — | — | — | 18× over |
| Haloacetic acids (HAA9) Disinfection byproduct |
0.959 ppb | 0.06 | — | — | — | — | — | 16× over |
| Dibromochloromethane Disinfection byproduct |
1.51 ppb | 0.1 | — | — | — | — | — | 15× over |
| Perfluorooctanoic acid (PFOA) PFAS |
0.725 ppt | 0.09 | 4.0 | 100 | 100 | 0.007 | — | 8.1× over |
| Dibromoacetic acid Disinfection byproduct |
0.132 ppb | 0.03 | — | — | — | — | — | 4.4× over |
| Haloacetic acids (HAA5) Disinfection byproduct |
0.336 ppb | 0.1 | 60.0 | 60 | — | — | — | 3.4× over |
| Chloroform Disinfection byproduct |
0.835 ppb | 0.4 | — | — | — | — | — | 2.1× over |
| Bromoform Disinfection byproduct |
0.764 ppb | 0.5 | — | — | — | — | — | 1.5× over |
| Trichloroacetic acid Disinfection byproduct |
0.0988 ppb | 0.1 | — | — | — | — | — | Below guideline |
| Dichloroacetic acid Disinfection byproduct |
0.131 ppb | 0.2 | — | — | — | — | — | Below guideline |
| Chlorate Disinfection byproduct |
114.5 ppb | 210.0 | — | — | — | — | — | Below guideline |
| Beryllium Heavy metal |
0.217 ppb | 1.0 | 4.0 | — | — | 1 | — | Below guideline |
| Barium Heavy metal |
63.2 ppb | 700.0 | 2000.0 | — | 1300 | 2000 | — | Below guideline |
| Manganese Heavy metal |
3.73 ppb | 100.0 | — | 50 | 80 | — | — | Below guideline |
| Selenium Heavy metal |
0.687 ppb | 30.0 | 50.0 | 20 | 40 | 30 | — | Below guideline |
| Vanadium Other |
0.247 ppb | 21.0 | — | — | — | — | — | Below guideline |
| Cobalt Other |
0.488 ppb | 70.0 | — | — | — | — | — | Below guideline |
| Chloromethane Other |
0.00416 ppb | 2.69 | — | — | — | — | — | Below guideline |
| Perfluoropentanoic Acid (PFPeA) PFAS |
1.03 ppt | 1000.0 | — | — | — | — | — | Below guideline |
| Perfluorobutane sulfonate (PFBS) PFAS |
0.717 ppt | 2000.0 | — | — | — | — | — | Below guideline |
| Perfluorohexanoic Acid (PFHxA) PFAS |
0.258 ppt | 1000.0 | — | — | — | — | — | Below guideline |
| Strontium Radiological |
0.0748 ppb | 1500.0 | — | — | — | — | — | Below guideline |
| Chlorodifluoromethane Other |
0.0517 ppb | — | — | — | — | — | — | 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 REHOBOTH PUMP DISTRICT (TUI).