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Tap water quality report

Holden Square Apartments

EPA monitoring tested this supplier for 42 contaminants and detected 9. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

42
contaminants tested
9
detected
63
people served
8
health-based violations
Maine rankingsLead in MainePFAS in Maine
Water source
Ground water
Ownership
Private
Counties served
Penobscot

Compliance record

Formal violations the EPA has on file for this supplier. A health-based violation means a contaminant limit or a required treatment was breached; the rest are monitoring or reporting failures — still violations, but not a measured health risk.

8
health-based violations
54
violations on file
4
still open
ViolationTypeStatusPeriod
TT Health-based Resolved 2021-08-25
TT Health-based Resolved 2021-08-25
TT Health-based Resolved 2021-08-25
TT Health-based Resolved 2021-08-25
MCL Health-based Resolved 2009-07-01 → 2009-07-31
MCL Health-based Resolved 2009-07-01 → 2009-07-31
MCL Health-based Resolved 2009-07-01 → 2009-07-31
MCL Health-based Resolved 2009-07-01 → 2009-07-31
MR Monitoring Unaddressed 2025-09-29
MR Monitoring Unaddressed 2025-01-01

Other contaminants detected

Each bar shows the measured level as a share of the EPA limit: green is well under, amber is close to it, red is over. For lead and copper the limit applies to exactly the 90th-percentile figure shown, so red there means a real exceedance. For everything else the limit applies to a running annual average while the figure is the 95th percentile of this system's samples — over 100% is worth reading, but is not by itself a violation. Where a single sample came in higher than that percentile, it is noted under the bar. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Lead
0.0028 mg/L 19%
of the EPA limit 0.0150 mg/L
 23/23 LCR 2025
Copper
138.8 µg/L 11%
of the EPA limit 1300 µg/L
worst single sample: 152 µg/L
13/13 SYR4 2012–2018
Nitrate
130 µg/L 1.3%
of the EPA limit 10000 µg/L
 8/18 SYR4 2012–2019
Arsenic
6.73 µg/L 67%
of the EPA limit 10 µg/L
worst single sample: 7.1 µg/L
3/3 SYR4 2012–2018
Barium
3.7 µg/L 0.2%
of the EPA limit 2000 µg/L
worst single sample: 3.9 µg/L
3/3 SYR4 2012–2018
Fluoride
209 µg/L 5.2%
of the EPA limit 4000 µg/L
worst single sample: 210 µg/L
3/3 SYR4 2012–2018
Chromium
2.14 µg/L 2.1%
of the EPA limit 100 µg/L
worst single sample: 2.2 µg/L
2/3 SYR4 2012–2018
Nitrate-Nitrite
128 µg/L 1.3%
of the EPA limit 10000 µg/L
worst single sample: 130 µg/L
2/3 SYR4 2012–2018
Lead
0.6800 µg/L 4.5%
of the EPA limit 15 µg/L
 1/13 SYR4 2012–2018
33 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-DichloropropaneAntimony, TotalBenzeneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbon TetrachlorideCombined UraniumDichloromethaneEthylene DibromideEthylbenzeneGross Alpha, Excl. Radon And UMercuryNitriteSeleniumStyreneTetrachloroethyleneThallium, TotalTolueneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
MITCHELL, JOE
Phone
207-772-3399
Email
[email protected]

Frequently asked questions about Holden Square Apartments

Is Holden Square Apartments tap water safe to drink?

EPA monitoring detected 9 contaminants in Holden Square Apartments's water. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and the utility's annual Consumer Confidence Report for its official compliance status.

What contaminants were detected in Holden Square Apartments's water?

EPA monitoring detected Lead, Copper, Nitrate, Arsenic, Barium, and others. The full list with the level and data source for each is above.

How many people does Holden Square Apartments serve?

Holden Square Apartments reports serving 63 people in Maine, per its EPA record.

Has Holden Square Apartments had any water quality violations?

The EPA has 54 violations on file for Holden Square Apartments, of which 8 are health-based (a contaminant limit or required treatment was breached) and 4 remain open. The rest are monitoring or reporting failures.

Where does this data come from?

Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.