224,485 people served, water utility, St. Lucie County
Billing, service and outages are handled by the utility at its official website above. ScoreYourWater is not your water company and never handles water billing.
City of Port St. Lucie Utility Systems Department has a Water Score of 100 out of 100 (Strong) on our scale. 0 of 9 detected contaminants are above a published health guideline (2018-2023). EPA compliance: no open violations (July to September 2026 extract); this is public data, not a test of your tap.
EPA treatment records (state-reported) list chloramines for Port St. Lucie Utilities. EPA record
EPA's records list no health-based violations for Port St. Lucie Utilities for compliance periods starting since July 1, 2021. Lead, 90th percentile: 4.6 ppb at the latest result since July 2021, at or below EPA's 15 ppb action level (EPA SDWIS, monitoring period January to December 2023). In the EPA UCMR 5 data we use, PFOS and PFOA were not detected at or above EPA's reporting level in any of Port St. Lucie Utilities' 4 samples. Scored against health guidelines that are stricter than legal limits, using public utility data. Not a test of your tap.
The 90th percentile is a system-wide measure from homes sampled under EPA's lead rule; it isn't a result for your home.
EPA UCMR 5 data, samples through June 2026.
0 contaminants above health guidelines (of 9 detected)
No detected contaminants were above their published health guidelines in the most recent data.
Lead: 4.6 ppb (90th percentile of tap samples, January to December 2023). EPA action level (90th percentile): 15 ppb.
Lead is measured at the tap in homes selected because they are most likely to have lead plumbing. EPA says lead in drinking water mainly comes from pipes, solder and fixtures in service lines and buildings, not from the water source. Your home's plumbing matters more than the utility's number. EPA's goal (MCLG) for lead is zero.
California's public health goal for lead is 0.2 ppb.
If your home is older or may have a lead service line, ask your utility (it must keep a service-line inventory) or have your tap tested by a state-certified lab.
| Contaminant | This utility | Legal limit or action level | Health guideline | Years |
|---|---|---|---|---|
| Fluoride | 710 ppbaverage of all sampleshighest sample 750 ppbdetected in 4 of 4 samples | 4,000 ppb | None published | 2020 |
| Nitrate | 34.3 ppbaverage of all sampleshighest sample 43 ppbdetected in 8 of 8 samples | 10,000 ppb | None published | 2018-2022 |
| Haloacetic acids (HAA9) | 22.5 ppbaverage of all sampleshighest sample 40.5 ppb |
None recorded in EPA SDWIS for compliance periods starting since Jul 1, 2021.
Source: EPA Safe Drinking Water Information System (SDWA bulk extract, July to September 2026).
These are EPA's and Florida DEP's public records for this water system, shown as of October 14, 2026. If you represent this utility, or think a record here is wrong, tell us: Report an error. If the error is in EPA's or Florida DEP's own records, the state drinking water program can correct it there, and this page updates at our next data refresh.
A legal limit is an enforceable standard, set by the EPA under the Safe Drinking Water Act. Limits weigh health research together with the cost and feasibility of treatment. A health guideline is published by public-health sources and based on health research alone. A utility can meet every legal limit and still be above a published health guideline.
City of Port St. Lucie Utility Systems Department is the main water provider for Port St. Lucie. Some addresses can be served by a different system, so check your water bill: it names your utility.
Call (772) 873-6400 or visit https://cityofpsl.com/Government/Your-City-Government/Departments/Utility-Systems/Contact-Utility-Systems. Billing and outages are handled by the utility, not by ScoreYourWater.
By EPA's service-area maps, Port St. Lucie Utilities is the main water system serving Port St. Lucie (St. Lucie County, FL). Your water bill names your utility. Source: EPA Water System Boundaries and U.S. Census Bureau 2020 place boundaries.
Port St. Lucie Utilities does not buy water from another system, according to EPA SDWA records. No other utility in this data buys water from it. (July to September 2026 extract.)
None of the 9 detected contaminants were above their published health guidelines in EPA SDWA, EPA UCMR and Florida DEP data, 2018-2023.
Chloramine is a disinfectant made by combining chlorine and ammonia. Some water systems use it in place of free chlorine. The public data used on this site (EPA SDWA, EPA UCMR and Florida DEP data) does not record which disinfectant Port St. Lucie Utilities uses, so we do not say. Your utility can tell you.
The score starts at 100. It goes down 8 for each contaminant above a cited health guideline whose source states a cancer basis, 5 for each other contaminant above its cited guideline, 5 for each of PFOA and PFOS averaging above the 4.0 ppt limit in EPA's 2024 PFAS rule, 10 for each contaminant whose average of all samples is above EPA's legal limit (instead of its guideline step), and 1 for each contaminant with a cited cancer-based guideline that is detected below it. Only guidelines with a cited document count. The lowest score is 5. Higher is better. For this report: nothing is subtracted, so the score is 100.
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| No federal limit |
| None published |
| 2020 |
| Total trihalomethanes (TTHMs) | 22.2 ppbaverage of all sampleshighest sample 48.4 ppbdetected in 118 of 120 samples | 80 ppb | None published | 2018-2022 |
|---|
| Haloacetic acids (HAA5) | 15.5 ppbaverage of all sampleshighest sample 41.1 ppbdetected in 119 of 120 samples | 60 ppb | None published | 2018-2022 |
|---|
| Nitrite | 5.56 ppbaverage of all sampleshighest sample 25 ppbdetected in 2 of 9 samples | 1,000 ppb | None published | 2018-2022 |
|---|
| Barium | 3.65 ppbaverage of all sampleshighest sample 4.3 ppbdetected in 2 of 2 samples | 2,000 ppb | None published | 2020 |
|---|
| Radium-226 | 0.61 pCi/Laverage of all sampleshighest sample 0.69 pCi/Ldetected in 2 of 2 samples | Counts toward the combined 5 pCi/L limit for radium-226 and radium-228 | None published | 2020 |
|---|
A legal limit is an enforceable standard, set by the EPA under the Safe Drinking Water Act. Limits weigh health research together with the cost and feasibility of treatment. A health guideline is published by public-health sources and based on health research alone. A utility can meet every legal limit and still be above a published health guideline.