Water Quality Report · Updated October 07, 2026
LIBERTY WATER LPSCO
LIBERTY WATER LPSCO delivers tap water graded F (43/100) by TapWaterSafety.org. The utility serves approximately 55,810 residents in LITCHFIELD PARK, Arizona using groundwater. The most significant water quality concerns are: PFAS contamination; Perfluorohexane sulfonate (PFHXS) significantly above health guideline; Arsenic significantly above health guideline; Chromium (hexavalent) significantly above health guideline. For questions, the utility can be reached at 623-935-9367.
Is LITCHFIELD PARK tap water safe to drink?
LIBERTY WATER LPSCO delivers tap water that earns a grade of F (43/100) from TapWaterSafety.org — a poor rating, with significant contamination concerns and/or recent violations.
The utility serves 55,810 residents in LITCHFIELD PARK, drawing from groundwater. Despite being legal under US EPA standards, this water would fail the European Union's Drinking Water Directive, primarily due to pfas contamination.
Public testing data identifies 15 contaminants in this water above EWG's health-based guidelines, including: Perfluorooctane sulfonate (PFOS), Perfluorohexane sulfonate (PFHXS), Arsenic, Chromium (hexavalent), Haloacetic acids (HAA9), Total trihalomethanes (TTHMs), Nitrate and nitrite, Nitrate, Perfluorooctanoic acid (PFOA), Haloacetic acids (HAA5), Dibromochloromethane, Bromoform, Bromodichloromethane, 1,2,3-Trichloropropane, Chloroform. 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 LIBERTY WATER LPSCO (system ID AZ0407046) for the last 3 years. Checked 2026-10-07.
| Rule | Type | Since | Status |
|---|---|---|---|
| Arsenic Rule | Missed testing or reporting | 04/01/2023 | Open |
| Ground Water Rule | Required treatment not met | 12/25/2023 | Open |
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 LITCHFIELD PARK residents
Top concerns in this water
Based on the most recent EPA and EWG data, these are the most significant water quality issues for LIBERTY WATER LPSCO.
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 6.93 ppt, 6929x above the EWG health guideline of 0.001 ppt.
Arsenic significantly above health guideline
Moderate concernArsenic detected at 6.09 ppb, 1522x above the EWG health guideline of 0.004 ppb.
Chromium (hexavalent) significantly above health guideline
Moderate concernChromium (hexavalent) detected at 9.83 ppb, 491x above the EWG health guideline of 0.02 ppb.
Contact LIBERTY WATER LPSCO
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 LITCHFIELD PARK
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.
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 43/100 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 |
|---|---|---|---|---|---|---|---|---|
| Perfluorooctane sulfonate (PFOS) PFAS |
6.24 ppt | 0.3 | 4.0 | 100 | 100 | 1 | — | EPA violation |
| Perfluorohexane sulfonate (PFHXS) PFAS |
6.93 ppt | 0.001 | 10.0 | — | — | — | — | 6929× over |
| Arsenic Heavy metal |
6.09 ppb | 0.004 | 10.0 | 10 | 10 | 0.004 | — | 1522× over |
| Chromium (hexavalent) Heavy metal |
9.83 ppb | 0.02 | — | — | — | — | — | 491× over |
| Haloacetic acids (HAA9) Disinfection byproduct |
4.23 ppb | 0.06 | — | — | — | — | — | 71× over |
| Total trihalomethanes (TTHMs) Disinfection byproduct |
8.9 ppb | 0.15 | 80.0 | 100 | — | — | — | 59× over |
| Nitrate and nitrite Inorganic |
7.38 ppm | 0.14 | 10.0 | 11.3 | 11.3 | 10 | — | 53× over |
| Nitrate Inorganic |
5.69 ppm | 0.14 | 10.0 | 11.3 | 11.3 | 10 | — | 41× over |
| Perfluorooctanoic acid (PFOA) PFAS |
3.7 ppt | 0.09 | 4.0 | 100 | 100 | 0.007 | — | 41× over |
| Haloacetic acids (HAA5) Disinfection byproduct |
2.07 ppb | 0.1 | 60.0 | 60 | — | — | — | 21× over |
| Dibromochloromethane Disinfection byproduct |
1.85 ppb | 0.1 | — | — | — | — | — | 19× over |
| Bromoform Disinfection byproduct |
4.64 ppb | 0.5 | — | — | — | — | — | 9.3× over |
| Bromodichloromethane Disinfection byproduct |
0.514 ppb | 0.06 | — | — | — | — | — | 8.6× over |
| 1,2,3-Trichloropropane Other |
0.00417 ppb | 0.0007 | — | — | — | — | — | 6.0× over |
| Chloroform Disinfection byproduct |
1.89 ppb | 0.4 | — | — | — | — | — | 4.7× over |
| Vanadium Other |
15.9 ppb | 21.0 | — | — | — | — | — | Below guideline |
| Chlorate Disinfection byproduct |
136.7 ppb | 210.0 | — | — | — | — | — | Below guideline |
| 1,4-Dioxane Semi-volatile organic compound |
0.0967 ppb | 0.35 | — | — | 50 | 1 | — | Below guideline |
| Barium Heavy metal |
95.0 ppb | 700.0 | 2000.0 | — | 1300 | 2000 | — | Below guideline |
| Molybdenum Other |
3.25 ppb | 40.0 | — | — | — | — | — | Below guideline |
| Manganese Heavy metal |
3.29 ppb | 100.0 | — | 50 | 80 | — | — | Below guideline |
| Perfluoropentanoic Acid (PFPeA) PFAS |
8.3 ppt | 1000.0 | — | — | — | — | — | Below guideline |
| Perfluorohexanoic Acid (PFHxA) PFAS |
5.01 ppt | 1000.0 | — | — | — | — | — | Below guideline |
| Perfluorobutanoic Acid (PFBA) PFAS |
2.75 ppt | 1000.0 | — | — | — | — | — | Below guideline |
| Perfluoroheptanoic acid (PFHPA) PFAS |
1.42 ppt | 1000.0 | — | — | — | — | — | Below guideline |
| Perfluorobutane sulfonate (PFBS) PFAS |
2.74 ppt | 2000.0 | — | — | — | — | — | Below guideline |
| Strontium Radiological |
0.838 ppb | 1500.0 | — | — | — | — | — | Below guideline |
| Chromium (total) Heavy metal |
9.6 ppb | — | 100.0 | — | — | — | — | Below guideline |
| Fluoride Inorganic |
1.7 ppm | — | 4.0 | 1.5 | 1.5 | — | — | Fails EU |
| Germanium Other |
0.396 ppb | — | — | — | — | — | — | Below guideline |
| Lithium Other |
91.3 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.
LIBERTY WATER LPSCO service area
This water system serves 1 community in Maricopa County, Arizona. Click any city for its dedicated tap water quality page.
Find the right filter for LITCHFIELD PARK water
Browse filter categories by water-quality concern. Each option below is NSF-certified for the matched contaminant type.