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Not health advice. Contact your local water utility for concerns.
Data from EPA Water Quality Reports. For official information, contact your water utility or health department.
EPA records for CCA - ELOY COMPLEX • Updated September 2026
Grade B — based on EPA compliance records, lead testing and PFAS monitoring
CCA - ELOY COMPLEX is in good standing with EPA, with only minor deductions for monitoring paperwork, low-level PFAS or historical readings near a limit.
Yes — by EPA's records, Eloy's tap water earns a B: no health-based violations in five years, lead at 0.5 ppb (90th percentile) and no PFAS detected. Lead from home plumbing is the main remaining risk.
By EPA's records, yes. CCA - ELOY COMPLEX earns a B: no health-based violations in the last five years, a lead 90th-percentile result of 0.5 ppb, and no PFAS detected in UCMR5 sampling. Lead from your own plumbing is the main risk city data cannot see.
CCA - ELOY COMPLEX's most recent Lead and Copper Rule result (2021-01-01 to 2023-12-31) was 0.5 ppb at the 90th percentile, below EPA's 15 ppb action level. Because lead usually comes from service lines and household plumbing, homes built before 1986 should still test at the tap.
No. None of the 116 UCMR5 PFAS results for CCA - ELOY COMPLEX (2023-03-20 to 2023-09-12) were at or above the reporting limit of roughly 3–5 ppt.
CCA - ELOY COMPLEX has 17 violations on file since 2016: 0 health-based in the last five years and 10 monitoring or reporting violations in that window. Monitoring violations are paperwork lapses, not measured contamination.
CCA - ELOY COMPLEX reports groundwater as its primary source and serves about 8,852 people (EPA PWSID AZ0411115).
Optional but sensible. The findings on this page are below federal limits; an NSF-certified pitcher or under-sink filter handles arsenic and improves taste.
Want to know what's really in your Eloy tap water?
Historical monitoring (2012–2019) shows arsenic near or above the EPA limit in Eloy.
Tap Score certified lab · Amazon. We may earn a commission, at no extra cost to you.
CCA - ELOY COMPLEX · SDWIS records since 2016 · 5-year window starts 2021-09-07
EPA records no health-based violations for this system in the last five years. The 10 violations on file in that window are monitoring or reporting paperwork issues, not measured contaminant exceedances.
| Violation | Category | Compliance period | Status |
|---|---|---|---|
| Monitoring, RegularArsenic | Monitoring & reporting | 2025-10-01 → 2025-12-31 | Resolvedreturned 2025-12-31 |
| Report Sample Result/Fail Monitor (RTCR)Revised Total Coliform Rule | Reporting | 2024-06-01 | Resolvedreturned 2024-08-13 |
| Report Sample Result/Fail Monitor (RTCR)Revised Total Coliform Rule | Reporting | 2024-02-01 | Resolvedreturned 2024-03-18 |
| Report Sample Result/Fail Monitor (RTCR)Revised Total Coliform Rule | Reporting | 2024-01-01 | Resolvedreturned 2024-03-12 |
| Lead Consumer NoticeLead and Copper Rule | Monitoring & reporting | 2024-01-01 | Resolvedreturned 2023-07-26 |
| Report Sample Result/Fail Monitor (RTCR)Revised Total Coliform Rule | Reporting | 2023-08-01 | Resolvedreturned 2024-02-05 |
| Monitoring, Source Water (GWR)E. COLI | Monitoring & reporting | 2022-07-01 | Resolvedreturned 2022-09-06 |
| Report Sample Result/Fail Monitor (RTCR)Revised Total Coliform Rule | Reporting | 2022-07-01 | Resolvedreturned 2022-09-06 |
| Report Sample Result/Fail Monitor (RTCR)Revised Total Coliform Rule | Reporting | 2022-03-01 | Resolvedreturned 2022-04-26 |
| Monitoring, RegularArsenic | Monitoring & reporting | 2022-01-01 → 2022-03-31 | Resolvedreturned 2022-03-31 |
| Report Sample Result/Fail Monitor (RTCR)Revised Total Coliform Rule | Reporting | 2021-03-01 | Resolvedreturned 2021-04-14 |
| Monitoring and Reporting (DBP)TTHM | Monitoring & reporting | 2020-08-01 → 2021-07-31 | Resolvedreturned 2021-07-31 |
| Monitoring and Reporting (DBP)Total Haloacetic Acids (HAA5) | Monitoring & reporting | 2020-08-01 → 2021-07-31 | Resolvedreturned 2021-07-31 |
| Consumer Confidence Report Complete Failure to ReportConsumer Confidence Rule | Other | 2020-07-01 | Resolvedreturned 2020-07-31 |
| Report Sample Result/Fail Monitor (RTCR)Revised Total Coliform Rule | Reporting | 2020-01-01 | Resolvedreturned 2020-02-11 |
| Monitoring and Reporting (DBP)Chlorine | Monitoring & reporting | 2018-10-01 → 2018-12-31 | Resolvedreturned 2018-12-31 |
| Lead Consumer NoticeLead and Copper Rule | Monitoring & reporting | 2017-11-03 | Resolvedreturned 2018-05-08 |
Source: ECHO SDWA bulk download (SDWA_VIOLATIONS_ENFORCEMENT.csv, SDWIS 2026Q2, file dated 2026-07-09, fetched 2026-09-06)
EPA Lead and Copper Rule 90th-percentile results reported by CCA - ELOY COMPLEX
Well below the 15 ppb action level. In the most recent monitoring period on file (2021-01-01 to 2023-12-31), 90% of the homes CCA - ELOY COMPLEX sampled had lead at or below 0.5 ppb.
EPA's action level is 15 ppb (dropping to 10 ppb under the 2024 Lead and Copper Rule Improvements). There is no safe level of lead; the 90th-percentile figure describes the system, not your tap — homes with lead service lines or pre-1986 plumbing can be higher.
| Monitoring period | Lead 90th percentile | vs 15 ppb action level |
|---|---|---|
| 2021-01-01 → 2023-12-31 | 0.5 ppb | Well below the 15 ppb action level |
| 2018-01-01 → 2020-12-31 | 0.62 ppb | Well below the 15 ppb action level |
| 2015-01-01 → 2017-12-31 | 0 ppb | Well below the 15 ppb action level |
| 2012-01-01 → 2014-12-31 | 0 ppb | Well below the 15 ppb action level |
| 2011-01-01 → 2013-12-31 | 0 ppb | Well below the 15 ppb action level |
| 2010-01-01 → 2012-12-31 | 0 ppb | Well below the 15 ppb action level |
| 2008-01-01 → 2010-12-31 | 13 ppb | Below the action level, but detectable |
| 2005-01-01 → 2007-12-31 | 4 ppb | Well below the 15 ppb action level |
| 2003-01-01 → 2003-12-31 | 3 ppb | Well below the 15 ppb action level |
| 2002-01-01 → 2002-12-31 | 19 ppb | Above the 15 ppb action level |
Source: ECHO SDWA bulk download (SDWA_LCR_SAMPLES.csv, SDWIS 2026Q2, file dated 2026-07-09, fetched 2026-09-06)
EPA UCMR5 monitoring, 2023-03-20 to 2023-09-12 · 116 PFAS results at entry points to the distribution system
No PFAS detected. None of the 116 UCMR5 PFAS results for CCA - ELOY COMPLEX were at or above the method reporting limit. Reporting limits are about 3–5 ppt, so “not detected” means below that threshold — not proven zero.
| Compound | Detects / samples | Max (ppt) | Reporting limit | EPA MCL |
|---|---|---|---|---|
| PFOA | 0 / 4 | < 4 | 4 ppt | 4 ppt |
| PFOS | 0 / 4 | < 4 | 4 ppt | 4 ppt |
| PFHxS | 0 / 4 | < 3 | 3 ppt | 10 ppt |
| PFNA | 0 / 4 | < 4 | 4 ppt | 10 ppt |
| HFPO-DA | 0 / 4 | < 5 | 5 ppt | 10 ppt |
| PFBS | 0 / 4 | < 3 | 3 ppt | hazard index only |
“< 4 ppt” means below the laboratory reporting limit, not zero. ppt = parts per trillion (ng/L). Results are for finished water leaving the treatment plant.
Lithium (also monitored under UCMR5, not a PFAS): detected in 4 of 4 samples, max 89.2 µg/L. There is no federal limit for lithium.
What PFAS are and how to remove them →
Source: UCMR5 occurrence data, EPA Data Summary July 2026 (UCMR5_All.txt)
EPA Six-Year Review 4 compliance samples for CCA - ELOY COMPLEX · finished water only · dated data, released 2024
These are the regulated-contaminant samples CCA - ELOY COMPLEX reported to its state between 2012 and 2019 — the most recent nationwide sample-level dataset EPA has published. Arsenic is flagged below; the status column explains why. Treat this as history, not today's tap water.
| Contaminant | Samples | Average | Max | EPA limit | Status |
|---|---|---|---|---|---|
| Arsenic | 4131 detects | 3.632 µg/L | 16 µg/L | 10 µg/LMCL | 2 of 41 samples over MCL |
| Nitrate (as N) | 34 | 5.113 mg/L | 8.5 mg/L | 10 mg/LMCL | Within MCL |
| Fluoride | 6 | 0.288 mg/L | 0.41 mg/L | 4 mg/LMCL | Within MCL |
| Chromium (total) | 63 detects | 1.167 µg/L | 2.9 µg/L | 100 µg/LMCL | Within MCL |
| Radium-226/228 | 40 detects | 0 pCi/L | ND | 5 pCi/LMCL | Not detected |
| Total trihalomethanes (TTHM) | 8 | 25.813 µg/L | 53 µg/L | 80 µg/LMCL (LRAA) | Within MCL |
| Haloacetic acids (HAA5) | 8 | 5.713 µg/L | 12 µg/L | 60 µg/LMCL (LRAA) | Within MCL |
| Lead (tap samples) | 413 detects | 0.302 µg/L | 6.4 µg/L | 15 µg/Laction level (90th percentile) | Reported, not scored (compliance is on the 90th percentile) |
| Copper (tap samples) | 41 | 113.659 µg/L | 530 µg/L | 1300 µg/Laction level (90th percentile) | Reported, not scored (compliance is on the 90th percentile) |
Averages count non-detects as zero. TTHM and HAA5 limits are locational running annual averages, so a single high sample is not a violation — we grade those on the average only. Lead and copper rows are individual tap samples and are shown for context; compliance (and our score) uses the 90th-percentile result above. LRAA = locational running annual average; ND = not detected.
Source: SYR4 Six-Year Review compliance monitoring data 2012–2019 (released 2024-03)
CCA - ELOY COMPLEX · 28 service lines inventoried · Q2 2026 snapshot
CCA - ELOY COMPLEX reports no lead or galvanized-requiring-replacement service lines and has classified 100% of its 28 lines as non-lead. Lead can still come from pre-1986 plumbing and fixtures inside a home.
Source: EPA SDWIS Service Line Inventory (Q2 2026) · PWS ID AZ0411115 · See all Arizona lead service lines. We may earn a commission from filters and test kits, at no extra cost to you.
Groundwater systems draw from wells; naturally occurring arsenic, nitrate, radium and uranium are the readings to watch, along with PFAS near industrial or military sites.
How to test your tap water and the treatment options that actually fit Eloy homes
The most reliable way to know what is actually coming out of your tap is a certified mail-in lab test. City-wide EPA data (like the report above) reflects the water leaving the treatment plant, but contaminants such as lead and copper can be picked up from your own service line and household plumbing — so the water at your Eloy faucet can differ from the system average. A state-certified lab measures dozens of contaminants at once with results you can trust; you can also find one near you through the EPA's certified-lab list at epa.gov/dwlabcert. Hardware-store test strips are cheaper and instant, but they only screen for a few basics (chlorine, hardness, pH, and a rough lead pass/fail) and are far less accurate — treat them as a first look, not a diagnosis.
Match the treatment to what your test finds. Reverse osmosis (RO) removes the widest range of contaminants — lead, arsenic, nitrate, PFAS, and dissolved solids — which makes an under-sink reverse osmosis system the most thorough choice for Eloy households with heavy-metal or PFAS concerns. If your main issue is taste, odor, or chlorine, an activated carbon filter (pitcher, faucet, or under-sink) is simpler and cheaper and handles chlorine and many organic compounds well, though carbon alone does not remove arsenic, nitrate, or most PFAS. NSF-certified pitchers rated for lead reduction are the easiest way to start today while you decide on a permanent setup.
We may earn a commission from testing kits and filters purchased through these links, at no extra cost to you.
Eloy ranks #19 of 37 graded Arizona cities.
By EPA's records, yes. CCA - ELOY COMPLEX earns a B: no health-based violations in the last five years, a lead 90th-percentile result of 0.5 ppb, and no PFAS detected in UCMR5 sampling. Lead from your own plumbing is the main risk city data cannot see.
CCA - ELOY COMPLEX's most recent Lead and Copper Rule result (2021-01-01 to 2023-12-31) was 0.5 ppb at the 90th percentile, below EPA's 15 ppb action level. Because lead usually comes from service lines and household plumbing, homes built before 1986 should still test at the tap.
No. None of the 116 UCMR5 PFAS results for CCA - ELOY COMPLEX (2023-03-20 to 2023-09-12) were at or above the reporting limit of roughly 3–5 ppt.
CCA - ELOY COMPLEX has 17 violations on file since 2016: 0 health-based in the last five years and 10 monitoring or reporting violations in that window. Monitoring violations are paperwork lapses, not measured contamination.
CCA - ELOY COMPLEX reports groundwater as its primary source and serves about 8,852 people (EPA PWSID AZ0411115).
Optional but sensible. The findings on this page are below federal limits; an NSF-certified pitcher or under-sink filter handles arsenic and improves taste.
Historical monitoring (2012–2019) shows arsenic near or above the EPA limit in Eloy.
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