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Tap water quality report

Greenridge Subdivision

EPA monitoring tested this supplier for 72 contaminants and detected 14. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

72
contaminants tested
14
detected
2,271
people served
0
health-based violations
Maryland rankingsLead in MarylandPFAS in Maryland
Water source
SWP
Ownership
Private
Counties served
Harford

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
10
violations on file
0
still open
ViolationTypeStatusPeriod
MR Monitoring Resolved 2020-01-01 → 2020-12-31
MR Monitoring Resolved 2020-01-01 → 2020-12-31
MR Monitoring Resolved 2020-01-01 → 2020-12-31
MR Monitoring Resolved 2020-01-01 → 2020-12-31
MR Monitoring Archived 2020-01-01 → 2020-12-31
MR Monitoring Resolved 2017-10-01
MR Monitoring Resolved 2011-10-01
MR Monitoring Resolved 2002-10-01
MR Monitoring Resolved 2002-10-01
MR Monitoring Resolved 2002-10-01

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
Nitrate
6527.5 µg/L 65%
of the EPA limit 10000 µg/L
worst single sample: 7000 µg/L
76/76 SYR4 2012–2019
TTHM
38.6155 µg/L 48%
of the EPA limit 80 µg/L
worst single sample: 40.16 µg/L
30/30 SYR4 2012–2019
Chloroform
25.175 µg/L
No EPA limit set
worst single sample: 29.1 µg/L
26/29 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
31.478 µg/L 52%
of the EPA limit 60 µg/L
worst single sample: 33.4 µg/L
25/30 SYR4 2012–2019
Bromodichloromethane
8.9935 µg/L
No EPA limit set
worst single sample: 9.42 µg/L
24/29 SYR4 2012–2019
Dibromochloromethane
3.55 µg/L
No EPA limit set
worst single sample: 4.9 µg/L
23/29 SYR4 2012–2019
Dichloroacetic Acid
12.24 µg/L
No EPA limit set
worst single sample: 13 µg/L
20/23 SYR4 2012–2016
Trichloroacetic Acid
14.83 µg/L
No EPA limit set
worst single sample: 15.4 µg/L
20/23 SYR4 2012–2016
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 18/18 LCR 2023
Barium
19.425 µg/L 1%
of the EPA limit 2000 µg/L
worst single sample: 21.2 µg/L
6/10 SYR4 2013–2019
Dibromoacetic Acid
1.61 µg/L
No EPA limit set
worst single sample: 1.63 µg/L
6/23 SYR4 2012–2016
Bromoform
1.048 µg/L
No EPA limit set
worst single sample: 1.05 µg/L
2/28 SYR4 2012–2017
Monochloroacetic Acid
3.8905 µg/L
No EPA limit set
worst single sample: 3.94 µg/L
2/23 SYR4 2012–2016
Nitrate-Nitrite
3690 µg/L 37%
of the EPA limit 10000 µg/L
 1/1 SYR4 2017
58 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, TotalChlorobenzeneCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumCombined Radium (-226 And -228)DichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebEthylene DibromideEndrinEthylbenzeneFluorideGross Alpha, Excl. Radon And UGross Beta Particle ActivityHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
LAWSON, CHRISTOPHER
Phone
410-286-5533
Email
[email protected]

Frequently asked questions about Greenridge Subdivision

Is Greenridge Subdivision tap water safe to drink?

EPA monitoring detected 14 contaminants in Greenridge Subdivision'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 Greenridge Subdivision's water?

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

How many people does Greenridge Subdivision serve?

Greenridge Subdivision reports serving 2,271 people in Maryland, per its EPA record.

Has Greenridge Subdivision had any water quality violations?

The EPA has 10 violations on file for Greenridge Subdivision, 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.