Question 1

Is Hawthorne Terrace Assoc water safe to drink?

Accepted Answer

Hawthorne Terrace Assoc (PWS ID: CT0340151) has 170 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. EPA SDWIS lists this system's service population as 156 people using Groundwater sources.

Question 2

How many people does Hawthorne Terrace Assoc serve?

Accepted Answer

EPA SDWIS reports that Hawthorne Terrace Assoc serves 156 people (this public water system's service population, not the municipal population of Danbury or any other city). It is a Local-owned system using Groundwater water sources with 39 service connections. The operator address is listed in Danbury, Connecticut.

Question 3

What type of violations does Hawthorne Terrace Assoc have?

Accepted Answer

Hawthorne Terrace Assoc has 170 total violations: 8 health-based violations (MCL exceedances or treatment failures), 144 monitoring/reporting violations, and 8 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.

Question 4

Has PFAS been detected in Hawthorne Terrace Assoc water?

Accepted Answer

No PFAS testing data is available for Hawthorne Terrace Assoc under the EPA's UCMR5 monitoring program.

Question 5

What water source does Hawthorne Terrace Assoc use?

Accepted Answer

Hawthorne Terrace Assoc uses Groundwater as its primary water source. It is classified as a Community Water System (CWS), serving residential populations year-round.

Question 6

Where does this data come from?

Accepted Answer

All data comes from the EPA Safe Drinking Water Information System (SDWIS) and the UCMR5 PFAS monitoring program. SDWIS tracks compliance for all public water systems regulated under the Safe Drinking Water Act.

Question 7

How does Hawthorne Terrace Assoc's violation count compare nationally?

Accepted Answer

Hawthorne Terrace Assoc has 170 recorded EPA SDWIS violations, fewer than 17% of the 29,740 public water systems serving 500 or more people nationwide (the same sitemap cohort used for the corpus-placement ranking above). 83% of that cohort has fewer violations than Hawthorne Terrace Assoc. A system can have zero recorded violations and still be actively monitored, and a high violation count often reflects a system that reports thoroughly, not necessarily one with worse water.

Contaminant	Category	Count	Latest
Lead and Copper Rule	MR	56	2025
Consumer Confidence Rule	Other	16	2019
Coliform (TCR)	MR	10	1998
Lead and Copper Rule	TT	8	2015
Combined Radium (-226 and -228)	MR	6	2013
Gross Alpha, Excl. Radon and U	MR	4	2013
Combined Uranium	MR	4	2013
Endrin	MR	2	2015
Methoxychlor	MR	2	2015
Toxaphene	MR	2	2015
Glyphosate	MR	2	2015
Di(2-ethylhexyl) adipate	MR	2	2015
OXAMYL	MR	2	2015
Dinoseb	MR	2	2015
Aldicarb sulfoxide	MR	2	2015
Carbofuran	MR	2	2015
Atrazine	MR	2	2015
2,4-D	MR	2	2015
HEXACHLOROBENZENE	MR	2	2015
Benzo(a)pyrene	MR	2	2015
Pentachlorophenol	MR	2	2015
Total Polychlorinated Biphenyls (PCB)	MR	2	2015
Chlordane	MR	2	2015
Asbestos	MR	2	2013
Dalapon	MR	2	2015
Hexachlorocyclopentadiene	MR	2	2015
LASSO	MR	2	2015
BHC-GAMMA	MR	2	2015
Picloram	MR	2	2015
Aldicarb sulfone	MR	2	2015

Hawthorne Terrace Assoc

Hawthorne Terrace Assoc standing, high SDWIS violation third

System Details

Violation History

Violation Count vs. the National Corpus

Population served record for Hawthorne Terrace Assoc

Nationwide peers

Cross-state systems with comparable violation load