Water Quality Report · Updated October 07, 2026
CAL AM - SUBURBAN ROSEMONT
CAL AM - SUBURBAN ROSEMONT delivers tap water graded C (66/100) by TapWaterSafety.org. The utility serves approximately 54,793 residents in SACRAMENTO, California using surface water (purchased). The most significant water quality concerns are: PFAS contamination; Perfluorohexane sulfonate (PFHXS) significantly above health guideline; Haloacetic acids (HAA5) significantly above health guideline; Total trihalomethanes (TTHMs) significantly above health guideline; Arsenic detected. For questions, the utility can be reached at 916-568-4259.
Is SACRAMENTO tap water safe to drink?
CAL AM - SUBURBAN ROSEMONT 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 54,793 residents in SACRAMENTO, drawing from surface water (purchased).
Public testing data identifies 12 contaminants in this water above EWG's health-based guidelines, including: Perfluorohexane sulfonate (PFHXS), Haloacetic acids (HAA5), Total trihalomethanes (TTHMs), Chromium (hexavalent), Haloacetic acids (HAA9), Arsenic, Nitrate, Nitrate and nitrite, Perfluorooctanoic acid (PFOA), Perfluorooctane sulfonate (PFOS), Uranium, Chlorate. 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 CAL AM - SUBURBAN ROSEMONT (system ID CA3410010) 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 SACRAMENTO residents
Top concerns in this water
Based on the most recent EPA and EWG data, these are the most significant water quality issues for CAL AM - SUBURBAN ROSEMONT.
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 1.28 ppt, 1281x above the EWG health guideline of 0.001 ppt.
Haloacetic acids (HAA5) significantly above health guideline
Moderate concernHaloacetic acids (HAA5) detected at 21.7 ppb, 217x above the EWG health guideline of 0.1 ppb.
Total trihalomethanes (TTHMs) significantly above health guideline
Moderate concernTotal trihalomethanes (TTHMs) detected at 28.7 ppb, 191x above the EWG health guideline of 0.15 ppb.
Arsenic detected
Moderate concernArsenic detected at 0.142 ppb.
Contact CAL AM - SUBURBAN ROSEMONT
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 SACRAMENTO
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. 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.
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 |
1.28 ppt | 0.001 | 10.0 | — | — | — | — | 1281× over |
| Haloacetic acids (HAA5) Disinfection byproduct |
21.7 ppb | 0.1 | 60.0 | 60 | — | — | — | 217× over |
| Total trihalomethanes (TTHMs) Disinfection byproduct |
28.7 ppb | 0.15 | 80.0 | 100 | — | — | — | 191× over |
| Chromium (hexavalent) Heavy metal |
3.32 ppb | 0.02 | — | — | — | — | — | 166× over |
| Haloacetic acids (HAA9) Disinfection byproduct |
5.23 ppb | 0.06 | — | — | — | — | — | 87× over |
| Arsenic Heavy metal |
0.142 ppb | 0.004 | 10.0 | 10 | 10 | 0.004 | — | 35× over |
| Nitrate Inorganic |
2.88 ppm | 0.14 | 10.0 | 11.3 | 11.3 | 10 | — | 21× over |
| Nitrate and nitrite Inorganic |
2.43 ppm | 0.14 | 10.0 | 11.3 | 11.3 | 10 | — | 17× over |
| Perfluorooctanoic acid (PFOA) PFAS |
0.311 ppt | 0.09 | 4.0 | 100 | 100 | 0.007 | — | 3.5× over |
| Perfluorooctane sulfonate (PFOS) PFAS |
0.8 ppt | 0.3 | 4.0 | 100 | 100 | 1 | — | 2.7× over |
| Uranium Radiological |
0.6 pCi/L | 0.43 | 20.0 | 30 | 30 | 0.43 | — | 1.4× over |
| Chlorate Disinfection byproduct |
219.5 ppb | 210.0 | — | — | — | — | — | 1.0× over |
| 1,2-Dibromo-3-chloropropane (DBCP) Other |
0.00133 ppb | 0.0017 | 0.2 | — | — | — | — | Below guideline |
| Vanadium Other |
10.8 ppb | 21.0 | — | — | — | — | — | Below guideline |
| Perchlorate Disinfection byproduct |
0.133 ppb | 1.0 | — | — | — | — | — | Below guideline |
| Manganese Heavy metal |
10.0 ppb | 100.0 | — | 50 | 80 | — | — | Below guideline |
| 1,4-Dioxane Semi-volatile organic compound |
0.00978 ppb | 0.35 | — | — | 50 | 1 | — | Below guideline |
| Barium Heavy metal |
4.94 ppb | 700.0 | 2000.0 | — | 1300 | 2000 | — | Below guideline |
| Perfluorohexanoic Acid (PFHxA) PFAS |
2.27 ppt | 1000.0 | — | — | — | — | — | Below guideline |
| Molybdenum Other |
0.0845 ppb | 40.0 | — | — | — | — | — | Below guideline |
| Perfluorobutanoic Acid (PFBA) PFAS |
1.38 ppt | 1000.0 | — | — | — | — | — | Below guideline |
| Perfluoropentanoic Acid (PFPeA) PFAS |
1.36 ppt | 1000.0 | — | — | — | — | — | Below guideline |
| Chloromethane Other |
0.00257 ppb | 2.69 | — | — | — | — | — | Below guideline |
| Strontium Radiological |
0.319 ppb | 1500.0 | — | — | — | — | — | Below guideline |
| Perfluoroheptanoic acid (PFHPA) PFAS |
0.149 ppt | 1000.0 | — | — | — | — | — | Below guideline |
| Perfluorobutane sulfonate (PFBS) PFAS |
0.267 ppt | 2000.0 | — | — | — | — | — | Below guideline |
| 1-Butanol Other |
0.0511 ppb | — | — | — | — | — | — | Below guideline |
| 2-Methoxyethanol Other |
0.00936 ppb | — | — | — | — | — | — | Below guideline |
| Chlorodifluoromethane Other |
0.0403 ppb | — | — | — | — | — | — | Below guideline |
| Chromium (total) Heavy metal |
0.346 ppb | — | 100.0 | — | — | — | — | Below guideline |
| Fluoride Inorganic |
0.0103 ppm | — | 4.0 | 1.5 | 1.5 | — | — | Below guideline |
| Germanium Other |
0.00851 ppb | — | — | — | — | — | — | Below guideline |
| o-toluidine Other |
0.0002 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 (4th ed.), California OEHHA PHGs, EWG Tap Water Database.
CAL AM - SUBURBAN ROSEMONT service area
This water system serves 1 community in Sacramento County, California. Click any city for its dedicated tap water quality page.
Find the right filter for SACRAMENTO water
Browse filter categories by water-quality concern. Each option below is NSF-certified for the matched contaminant type.