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Hawaiian Isles MHP

What EPA’s and Florida’s records show in this utility’s water: nitrate, arsenic and other regulated chemicals; lead and copper; and violations since 2016, with the certification that handles each result.

Serves
250 people
Connections
938
Water source
Groundwater
Based in
Ruskin, FL
County
Hillsborough
Owner
Private
The ZIP code it serves

33570

The short answer

1 result is above the health goal. The worst: Lead, above the health goal. 1 health-based violation since 2016.

What handles it

What was found

Lead and copper: EPA SDWIS monitoring periods ending 2015 to 2024.

Total trihalomethanes (TTHM), fluoride, haloacetic acids (HAA5), arsenic, chromium (total), nitrate and uranium: Florida’s own results, samples taken from Feb. 21, 2020 to Nov. 21, 2024, with EPA’s 2012 to 2019 file for earlier years.

Above the health goal1

Lead

Comes from pipes, often your own

Above the health goal

0.5ppb

90th percentile, 2024

In the latest period, 9 in 10 homes sampled were at or below 0.5 ppb, below EPA’s action level of 15 ppb. The action level drops to 10 ppb on Nov. 1, 2027. EPA’s health goal for lead is zero.

What handles it

Below EPA’s limits3

Total trihalomethanes (TTHM)

Forms or is added in treatment

Below EPA’s limits

40.6ppb

Highest yearly average, 2020 to 2024

2024 average: 33.8 ppb

Averaged by year, the highest was 40.6 ppb, in 2022, below EPA’s legal limit of 80 ppb. Its highest single sample was 123 ppb. In 2024, the latest year on file, its two samples averaged 33.8 ppb. EPA recorded no violation for total trihalomethanes (TTHM) at this utility since 2020. Earlier, from 2012 to 2019, EPA’s file shows a highest yearly average of 102 ppb, in 2018, and EPA recorded a violation in 2019.

What handles it

  • NSF/ANSI 53 look for “Trihalomethanes (TTHM) Reduction”
  • NSF/ANSI 58 look for “Trihalomethanes (TTHM) Reduction”

Fluoride

Forms or is added in treatment

Below EPA’s limits

0.78ppm

Highest yearly average, 2021 to 2024

Averaged by year, the highest was 0.78 ppm, in 2024, below EPA’s legal limit of 4.0 ppm. Its highest single sample was 0.79 ppm. That was also the latest year on file. Earlier, from 2012 to 2019, EPA’s file shows a highest yearly average of 1.0 ppm, in 2015.

What handles it

Haloacetic acids (HAA5)

Forms or is added in treatment

Below EPA’s limits

11.6ppb

Highest yearly average, 2020 to 2024

2024 average: 6.3 ppb

Averaged by year, the highest was 11.6 ppb, in 2022, below EPA’s legal limit of 60 ppb. Its highest single sample was 16.4 ppb. In 2024, the latest year on file, its two samples averaged 6.3 ppb. Earlier, from 2012 to 2019, EPA’s file shows a highest yearly average of 12.8 ppb, in 2019.

What handles it

No certification claim covers this compound yet.

4 compounds tested and not foundBelow the reporting level in every sample. Not found is not the same as zero.
  • Arsenic
  • Chromium (total)
  • Nitrate
  • Uranium

What handles it

A certification covers specific claims, not a whole standard. Look for these claims on the certifier’s listing, not the box. Wording varies a little: NSF writes “Lead Reduction,” WQA just “Lead.”

At the tap, or for the whole house?

Lead and copper usually come from pipes and fixtures inside or near your home. A whole-house system sits where water enters, so it cannot catch what your own plumbing adds after it. For those, the filter that counts is the one at the tap. How whole-house systems compare.

Filters with those claims on a certifier’s listing

Disclosure: TapBuff earns a commission if you buy through some links on this page. It does not change which standard or filter we name. As an Amazon Associate, TapBuff earns from qualifying purchases. How TapBuff makes money

Compare five-year costs

The best water filters for lead, ranked

Violations since 2016

Contaminant or ruleTypePeriodMeasuredStatus
TTHMThe running average was above the legal limit.EPA: Maximum Contaminant Level Violation, AverageJuly 1, 2019 to Sept. 30, 201988.2 UG/LResolved
Health-based violations only. Resolved and archived mean the utility returned to compliance or the state closed the record. 5 monitoring or reporting violations not shown.

What this report can’t tell you

  • Everything else. Total trihalomethanes (TTHM), fluoride, haloacetic acids (HAA5), arsenic, chromium (total), nitrate and uranium results here are Florida’s own from 2020 on, with EPA’s national file for 2012 to 2019. Hawaiian Isles MHP’s own annual report, which it must send you every year, has the contaminants this page does not show.

  • Your own plumbing. Lead results are the 90th percentile across homes the utility samples. Your home’s service line, solder and fixtures decide yours. A certified lab test is the only way to know.

  • What it means for your health. This page reports what the records show and EPA’s limits and goals; it is not medical advice. If you are worried about a health effect, talk to a doctor or your local health department.

  • Anything after the latest data. SDWIS data is from 2026 Q3; UCMR 5 didn’t sample this utility; Florida’s results run from Feb. 21, 2020 to Nov. 21, 2024.

Testing your own tap

Hawaiian Isles MHP’s results are for the water it sends out. What your own service line, solder and fixtures add shows up only in a test of your tap, by a lab Florida certifies.

The 3 labs Florida certifies closest to the area Hawaiian Isles MHP serves, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.

  • Benchmark EnviroAnalytical, Inc.

    Palmetto, FL · about 9 miles

    Certified for bacteria, nitrate, lead and copper, metals, minerals and other inorganics, organic chemicals

    (941) 723-9986

  • St. Petersburg Environmental Compliance Division Laboratory

    St. Petersburg, FL · about 15 miles

    Certified for bacteria, nitrate, minerals and other inorganics

    (727) 892-5696

  • Advanced Environmental Laboratories, Inc. - Tampa

    Tampa, FL · about 18 miles

    Certified for bacteria, lead and copper, minerals and other inorganics, organic chemicals, disinfection byproducts

    (813) 630-9616

Florida Department of Health Bureau of Public Health Laboratories: Coliform and E. coli testing for private wells at the Jacksonville and Miami labs. Collection kits come from your county health department, and the sample has to reach the lab on ice the same day it is collected. $40 for private testing through the state lab. Well Water Testing, Florida Department of Health.

All 212 certified labs for Florida

Sources

PWSID FL6290741. Rebuilt from EPA data on Oct. 18, 2026.

Towns it serves

Also in Hillsborough County

All Florida utilities

What to do next