2024WaterQualityReport_forweb (3) | Page 3

The Town of Jupiter Utilities monitors for contaminants in accordance with federal and state laws and regulations. Except where indicated otherwise, this report reflects monitoring results from the 2024 calendar year. The Town of Jupiter Utilities Department has also been monitoring for unregulated contaminants in drinking water. Unregulated contaminants are those for which the U. S. EPA has not established drinking water regulations. The purpose of unregulated monitoring is to assist the EPA in determining how often these contaminants are found in drinking water and whether future regulation is warranted. In 2023, the Town of Jupiter Utilities participated in the fifth round of the Unregulated Contaminant Monitoring Rule( UCMR5). Request a copy of the results by calling 561-741-2735.

STAGE 1 DISINFECTANTS AND DISINFECTION BY-PRODUCTS

CHLORAMINES( PPM) 1 / 24- 12 / 24 N 3.37 PPM 0.6- 4.3 4 4 Water additive used to control microbes

For bromate, chloramines or chlorine, the level detected is the highest running annual average( RAA), computed quarterly, of monthly averages of all samples collected. The range of results is the lowest to highest of all us samples collected during the past year.

STAGE 2 DISINFECTANTS AND DISINFECTION BY-PRODUCTS

CONTAMINANT AND UNIT OF MEASUREMENT

DATE OF SAMPLING( MO / YR)

MCL VIOLATION Y / N

LEVEL RANGE OF DETECTED RESULTS MCLG MCL LIKELY SOURCE OF

CONTAMINATION

HALOACETIC ACIDS( HAA5)( PPB) 1 / 24- 12 / 24 N 2.23 PPB * 0- 3.9 N / A 60 By-product of drinking water disinfection TOTAL TRIHALOMETHANES( TTHM)( PPB) 1 / 24- 12 / 24 N 1.78 PPB * 0.4- 2.3 N / A 80 By-product of drinking water disinfection

* The highest HAA5 Locational Running Annual Average( LRAA) is found at 9601 SE Little Club Way. The highest TTHM LRAA is found at 12800 US-1, Juno Beach.

INORGANIC CONTAMINANTS

CONTAMINANT AND UNIT OF MEASUREMENT

DATE OF SAMPLING( MO / YR)

MCL VIOLATION Y / N

LEVEL DETECTED

RANGE OF RESULTS MCLG MCL LIKELY SOURCE OF

CONTAMINATION

BARIUM( PPM) 2 / 23 N 0.00185 PPM N / A 2 2 Discharge of drilling wastes; discharge of metal refineries; erosion of natural deposits

FLUORIDE( PPM)* 2 / 23 N 0.088 PPM N / A 4 4

Erosion of natural deposits; discharge from fertilizer and aluminum factories. Water additive which promotes strong teeth when at optimum levels of 0.7

NITRATE( as Nitrogen)( PPM)

4 / 24 N 0.119 PPM N / A 10 10

Runoff from fertilizer use; leaching from septic tanks, sewage; erosion of natural deposits

SODIUM( PPM) 2 / 23 N 46.8 PPM N / A N / A 160 Salt water intrusion, leaching from soil

Results in the level detected column for inorganic contaminants are the highest average at any of the sampling points or the highest detected level at any sampling point, depending on the sampling frequency.

* Fluoride is naturally occurring in our source water, the Floridan Aquifer. The Town of Jupiter does not add fluoride to its water treatment process.

RADIOACTIVE CONTAMINANTS

RADIUM 226 + 228 or Combined Radium( pCi / L)

2 / 20 N 2.3 N / A 0 5 Erosion of natural deposits

Results in the Level Detected column for radioactive contaminants are the highest average at any of the sampling points or the highest detected level at any sampling point, depending on the sampling frequency.

Radon

In 2024, radon was detected in the finished water supply four out of four times. The maximum result was 15.4 pCi / L. There is no federal regulation for radon levels in drinking water. Radon is a radioactive gas that you can’ t see, taste or smell, and is a known human carcinogen. It can move up through the ground and into a home through cracks and holes in the foundation, and to a lesser extent, it can permeate indoor air when released from tap water during household activities such as showering and washing dishes. If you are concerned about radon in your home, contact the EPA’ s Radon Hotline, 800-SOS-RADON, for more information.