Tap WaterIndex

← Delaware

Tap water quality report

Mountain Hill Water Company

EPA monitoring tested this supplier for 72 contaminants and detected 13. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

72
contaminants tested
13
detected
2,154
people served
0
health-based violations
Delaware rankingsLead in DelawarePFAS in Delaware
Water source
SWP
Ownership
Private
Counties served
Cecil

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.

0
health-based violations
6
violations on file
0
still open
ViolationTypeStatusPeriod
MR Monitoring Resolved 2009-04-01 → 2009-04-30
MR Monitoring Resolved 2009-04-01 → 2009-04-30
MR Monitoring Resolved 2009-04-01 → 2009-04-30
MR Monitoring Resolved 2008-01-01 → 2008-12-31
MR Monitoring Resolved 2008-01-01 → 2008-12-31
MR Monitoring Resolved 2008-01-01 → 2008-12-31

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
Nitrate
749 µg/L 7.5%
of the EPA limit 10000 µg/L
 12/16 SYR4 2012–2019
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 8/8 LCR 2023
TTHM
70.82 µg/L 89%
of the EPA limit 80 µg/L
worst single sample: 84.4 µg/L
8/8 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
12.595 µg/L 21%
of the EPA limit 60 µg/L
worst single sample: 14.18 µg/L
6/7 SYR4 2012–2019
Chloroform
10.5775 µg/L
No EPA limit set
worst single sample: 11.5 µg/L
4/4 SYR4 2012–2019
Barium
44.355 µg/L 2.2%
of the EPA limit 2000 µg/L
worst single sample: 45 µg/L
2/3 SYR4 2014–2019
Bromodichloromethane
4.7485 µg/L
No EPA limit set
worst single sample: 4.83 µg/L
2/3 SYR4 2012–2014
Dibromochloromethane
2.274 µg/L
No EPA limit set
worst single sample: 2.31 µg/L
2/3 SYR4 2012–2014
Dichloroacetic Acid
1.8385 µg/L
No EPA limit set
worst single sample: 1.87 µg/L
2/2 SYR4 2012–2014
Gross Beta Particle Activity
7.735 pCi/L
No EPA limit set
worst single sample: 7.8 pCi/L
2/4 SYR4 2012
Trichloroacetic Acid
1.5215 µg/L
No EPA limit set
worst single sample: 1.57 µg/L
2/2 SYR4 2012–2014
Chromium
1.9 µg/L 1.9%
of the EPA limit 100 µg/L
 1/3 SYR4 2014–2019
Mercury
0.2000 µg/L 10%
of the EPA limit 2 µg/L
 1/3 SYR4 2014–2019
59 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane2,4,5-TP2,4-DAntimony, TotalArsenicAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalBromoformChlorobenzeneCadmiumCarbofuranCarbon TetrachlorideChlordaneCombined Radium (-226 And -228)DichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromoacetic AcidDinosebEthylene DibromideEndrinEthylbenzeneFluorideGross Alpha, Excl. Radon And UHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMethoxychlorMonobromoacetic AcidMonochloroacetic AcidNitrate-NitriteOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
OWENS, WILLIAM
Phone
302-453-6900
Email
[email protected]

Frequently asked questions about Mountain Hill Water Company

Is Mountain Hill Water Company tap water safe to drink?

EPA monitoring detected 13 contaminants in Mountain Hill Water Company'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 Mountain Hill Water Company's water?

EPA monitoring detected Nitrate, Lead, TTHM, Total Haloacetic Acids (HAA5), Chloroform, and others. The full list with the level and data source for each is above.

How many people does Mountain Hill Water Company serve?

Mountain Hill Water Company reports serving 2,154 people in Delaware, per its EPA record.

Has Mountain Hill Water Company had any water quality violations?

The EPA has 6 violations on file for Mountain Hill Water Company, of which 0 are health-based (a contaminant limit or required treatment was breached) and 0 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.