Tap Water Quality Report
Tap water quality in REDLANDS, California
Tap water in REDLANDS, California receives a grade of D (60/100) from TapWaterSafety.org. It's served by REDLANDS CITY MUD-WATER DIV. The most significant water quality concerns are: PFAS contamination; Perfluorohexane sulfonate (PFHXS) significantly above health guideline; Haloacetic acids (HAA5) significantly above health guideline; Haloacetic acids (HAA9) significantly above health guideline. Data sources: EPA SDWIS, EPA ECHO, EWG Tap Water Database.
What's in REDLANDS's tap water
Top water quality concerns identified by the EPA and Environmental Working Group across the utility serving REDLANDS.
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 0.428 ppt, 428x above the EWG health guideline of 0.001 ppt.
Haloacetic acids (HAA5) significantly above health guideline
Moderate concernHaloacetic acids (HAA5) detected at 36.2 ppb, 362x above the EWG health guideline of 0.1 ppb.
Haloacetic acids (HAA9) significantly above health guideline
Moderate concernHaloacetic acids (HAA9) detected at 15.2 ppb, 253x above the EWG health guideline of 0.06 ppb.
EPA compliance record
Official U.S. EPA records for REDLANDS CITY MUD-WATER DIV (system ID CA3610037) 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 REDLANDS
Filters matched to the specific contaminants in REDLANDS'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 REDLANDS'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 |
0.428 ppt | 0.001 | 10.0 | — | — | — | — | 428× over |
| Haloacetic acids (HAA5) Disinfection byproduct |
36.2 ppb | 0.1 | 60.0 | 60 | — | — | — | 362× over |
| Haloacetic acids (HAA9) Disinfection byproduct |
15.2 ppb | 0.06 | — | — | — | — | — | 253× over |
| Total trihalomethanes (TTHMs) Disinfection byproduct |
13.9 ppb | 0.15 | 80.0 | 100 | — | — | — | 93× over |
| Trichloroacetic acid Disinfection byproduct |
5.21 ppb | 0.1 | — | — | — | — | — | 52× over |
| Chromium (hexavalent) Heavy metal |
0.951 ppb | 0.02 | — | — | — | — | — | 48× over |
| Bromodichloromethane Disinfection byproduct |
2.7 ppb | 0.06 | — | — | — | — | — | 45× over |
| Chloroform Disinfection byproduct |
9.69 ppb | 0.4 | — | — | — | — | — | 24× over |
| Dichloroacetic acid Disinfection byproduct |
4.31 ppb | 0.2 | — | — | — | — | — | 22× over |
| Nitrate Inorganic |
2.59 ppm | 0.14 | 10.0 | 11.3 | 11.3 | 10 | — | 18× over |
| Dibromochloromethane Disinfection byproduct |
1.07 ppb | 0.1 | — | — | — | — | — | 11× over |
| Uranium Radiological |
4.66 pCi/L | 0.43 | 20.0 | 30 | 30 | 0.43 | — | 11× over |
| Perfluorooctanoic acid (PFOA) PFAS |
0.486 ppt | 0.09 | 4.0 | 100 | 100 | 0.007 | — | 5.4× over |
| Perfluorooctane sulfonate (PFOS) PFAS |
0.651 ppt | 0.3 | 4.0 | 100 | 100 | 1 | — | 2.2× over |
| Perchlorate Disinfection byproduct |
1.29 ppb | 1.0 | — | — | — | — | — | 1.3× over |
| Bromoform Disinfection byproduct |
0.286 ppb | 0.5 | — | — | — | — | — | Below guideline |
| Dibromoacetic acid Disinfection byproduct |
0.0115 ppb | 0.03 | — | — | — | — | — | Below guideline |
| Chlorate Disinfection byproduct |
78.8 ppb | 210.0 | — | — | — | — | — | Below guideline |
| Vanadium Other |
3.36 ppb | 21.0 | — | — | — | — | — | Below guideline |
| Molybdenum Other |
4.88 ppb | 40.0 | — | — | — | — | — | Below guideline |
| Manganese Heavy metal |
1.76 ppb | 100.0 | — | 50 | 80 | — | — | Below guideline |
| Perfluoropentanoic Acid (PFPeA) PFAS |
0.462 ppt | 1000.0 | — | — | — | — | — | Below guideline |
| Perfluorobutanoic Acid (PFBA) PFAS |
0.19 ppt | 1000.0 | — | — | — | — | — | Below guideline |
| Strontium Radiological |
0.224 ppb | 1500.0 | — | — | — | — | — | Below guideline |
| Perfluorobutane sulfonate (PFBS) PFAS |
0.254 ppt | 2000.0 | — | — | — | — | — | Below guideline |
| Perfluorohexanoic Acid (PFHxA) PFAS |
0.115 ppt | 1000.0 | — | — | — | — | — | Below guideline |
| Chromium (total) Heavy metal |
0.553 ppb | — | 100.0 | — | — | — | — | Below guideline |
| Fluoride Inorganic |
0.621 ppm | — | 4.0 | 1.5 | 1.5 | — | — | Below guideline |
| Lithium Other |
1.39 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 REDLANDS CITY MUD-WATER DIV.