Water Quality Report · Updated May 12, 2026
UPLAND, CITY OF
UPLAND, CITY OF delivers tap water graded D (62/100) by TapWaterSafety.org. The utility serves approximately 78,376 residents in UPLAND, California using surface water. 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. For questions, the utility can be reached at 909-291-2931.
Is UPLAND tap water safe to drink?
UPLAND, CITY OF delivers tap water that earns a grade of D (62/100) from TapWaterSafety.org — a below-average rating, with multiple concerns including haloacetic acids (haa5) significantly above health guideline.
The utility serves 78,376 residents in UPLAND, drawing from surface water.
Public testing data identifies 18 contaminants in this water above EWG's health-based guidelines, including: Haloacetic acids (HAA5), Haloacetic acids (HAA9), Total trihalomethanes (TTHMs), Arsenic, Bromodichloromethane, Dibromoacetic acid, Dibromochloromethane, Tetrachloroethylene (perchloroethylene), Nitrate and nitrite, Nitrate, Trichloroacetic acid, Chromium (hexavalent), 1,2-Dibromo-3-chloropropane (DBCP), Chloroform, Dichloroacetic acid, Bromoform, Uranium, Radium, combined (-226 and -228). 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.
Quick actions for UPLAND residents
Top concerns in this water
Based on the most recent EPA and EWG data, these are the most significant water quality issues for UPLAND, CITY OF.
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.
Contact UPLAND, CITY OF
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 UPLAND
Filters matched to the specific contaminants in this water supply.
Carbon block (NSF/ANSI 42 + 53)
$40-$750Activated carbon is highly effective for disinfection byproducts like TTHM and HAA5.
Reverse Osmosis
$249-$750Arsenic is most effectively removed by reverse osmosis. Some specialized adsorptive filters also work.
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 62/100 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 |
|---|---|---|---|---|---|---|---|---|
| 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 (4th ed.), California OEHHA PHGs, EWG Tap Water Database.
UPLAND, CITY OF service area
This water system serves 1 community in San Bernardino County, California. Click any city for its dedicated tap water quality page.
Find the right filter for UPLAND water
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