Tap Water Quality Report
Tap water quality in UPLAND, California
Tap water in UPLAND, California receives a grade of D (63/100) from TapWaterSafety.org. It's served by UPLAND, CITY OF. The most significant water quality concerns are: Haloacetic acids (HAA5) significantly above health guideline; Haloacetic acids (HAA9) significantly above health guideline; Total trihalomethanes (TTHMs) significantly above health guideline; Arsenic detected. Data sources: EPA SDWIS, EPA ECHO, EWG Tap Water Database.
What's in UPLAND's tap water
Top water quality concerns identified by the EPA and Environmental Working Group across the utility serving UPLAND.
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 11.2 ppb, 187x above the EWG health guideline of 0.06 ppb.
Total trihalomethanes (TTHMs) significantly above health guideline
Moderate concernTotal trihalomethanes (TTHMs) detected at 19.1 ppb, 127x above the EWG health guideline of 0.15 ppb.
Arsenic detected
Moderate concernArsenic detected at 0.468 ppb.
EPA compliance record
Official U.S. EPA records for UPLAND, CITY OF (system ID CA3610050) 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 UPLAND
Filters matched to the specific contaminants in UPLAND's water supply.
Carbon filter certified for VOCs (NSF/ANSI 53)
$180-$599Activated carbon is effective for disinfection byproducts. Look for NSF/ANSI 53 VOC reduction.
Reverse osmosis certified for arsenic (NSF/ANSI 58)
$429-$599Reverse osmosis certified under NSF/ANSI 58 for arsenic is the most reliable home option.
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 UPLAND'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 (HAA5) Disinfection byproduct |
36.2 ppb | 0.1 | 60.0 | 60 | — | — | — | 362× over |
| Haloacetic acids (HAA9) Disinfection byproduct |
11.2 ppb | 0.06 | — | — | — | — | — | 187× over |
| Total trihalomethanes (TTHMs) Disinfection byproduct |
19.1 ppb | 0.15 | 80.0 | 100 | — | — | — | 127× over |
| Arsenic Heavy metal |
0.468 ppb | 0.004 | 10.0 | 10 | 10 | 0.004 | — | 117× over |
| Bromodichloromethane Disinfection byproduct |
4.24 ppb | 0.06 | — | — | — | — | — | 71× over |
| Dibromoacetic acid Disinfection byproduct |
1.67 ppb | 0.03 | — | — | — | — | — | 56× over |
| Dibromochloromethane Disinfection byproduct |
5.36 ppb | 0.1 | — | — | — | — | — | 54× over |
| Tetrachloroethylene (perchloroethylene) Volatile organic compound |
3.12 ppb | 0.06 | 5.0 | — | — | — | — | 52× over |
| Nitrate and nitrite Inorganic |
5.64 ppm | 0.14 | 10.0 | 11.3 | 11.3 | 10 | — | 40× over |
| Nitrate Inorganic |
4.8 ppm | 0.14 | 10.0 | 11.3 | 11.3 | 10 | — | 34× over |
| Trichloroacetic acid Disinfection byproduct |
2.77 ppb | 0.1 | — | — | — | — | — | 28× over |
| Chromium (hexavalent) Heavy metal |
0.534 ppb | 0.02 | — | — | — | — | — | 27× over |
| 1,2-Dibromo-3-chloropropane (DBCP) Other |
0.0319 ppb | 0.0017 | 0.2 | — | — | — | — | 19× over |
| Chloroform Disinfection byproduct |
5.16 ppb | 0.4 | — | — | — | — | — | 13× over |
| Dichloroacetic acid Disinfection byproduct |
2.28 ppb | 0.2 | — | — | — | — | — | 11× over |
| Bromoform Disinfection byproduct |
3.62 ppb | 0.5 | — | — | — | — | — | 7.2× over |
| Uranium Radiological |
3.01 pCi/L | 0.43 | 20.0 | 30 | 30 | 0.43 | — | 7.0× over |
| Radium, combined (-226 and -228) Radiological |
0.06 pCi/L | 0.05 | 5.0 | — | — | — | — | 1.2× over |
| Trichloroethylene Volatile organic compound |
0.112 ppb | 0.4 | 5.0 | 10 | 20 | 1.7 | — | Below guideline |
| Chlorate Disinfection byproduct |
55.2 ppb | 210.0 | — | — | — | — | — | Below guideline |
| Aluminum Heavy metal |
132.0 ppb | 600.0 | — | 200 | — | 600 | — | Below guideline |
| Vanadium Other |
4.2 ppb | 21.0 | — | — | — | — | — | Below guideline |
| Perchlorate Disinfection byproduct |
0.154 ppb | 1.0 | — | — | — | — | — | Below guideline |
| Molybdenum Other |
3.25 ppb | 40.0 | — | — | — | — | — | Below guideline |
| MTBE Volatile organic compound |
0.0227 ppb | 13.0 | — | — | — | — | — | Below guideline |
| Manganese Heavy metal |
0.0655 ppb | 100.0 | — | 50 | 80 | — | — | Below guideline |
| Perfluoropentanoic Acid (PFPeA) PFAS |
0.335 ppt | 1000.0 | — | — | — | — | — | Below guideline |
| Perfluorohexanoic Acid (PFHxA) PFAS |
0.324 ppt | 1000.0 | — | — | — | — | — | Below guideline |
| Strontium Radiological |
0.284 ppb | 1500.0 | — | — | — | — | — | Below guideline |
| 1,1-Dichloroethane Volatile organic compound |
0.00044 ppb | 3.0 | — | — | — | — | — | Below guideline |
| 1,1-Dichloroethylene Volatile organic compound |
0.00258 ppb | — | 7.0 | — | — | — | — | Below guideline |
| Bromide Other |
16.9 ppb | — | — | — | — | — | — | Below guideline |
| Chlorodifluoromethane Other |
0.0614 ppb | — | — | — | — | — | — | Below guideline |
| Dichlorodifluoromethane Other |
0.676 ppb | — | — | — | — | — | — | Below guideline |
| Fluoride Inorganic |
0.307 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 UPLAND, CITY OF.