Question 1

Is Hollis Brookline Hs water safe to drink?

Accepted Answer

Hollis Brookline Hs (PWS ID: NH1175050) has 149 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. EPA SDWIS lists this system's service population as 980 people using Groundwater sources.

Question 2

How many people does Hollis Brookline Hs serve?

Accepted Answer

EPA SDWIS reports that Hollis Brookline Hs serves 980 people (this public water system's service population, not the municipal population of Hollis or any other city). It is a Local-owned system using Groundwater water sources with 1 service connections. The operator address is listed in Hollis, New Hampshire.

Question 3

What type of violations does Hollis Brookline Hs have?

Accepted Answer

Hollis Brookline Hs has 149 total violations: 36 health-based violations (MCL exceedances or treatment failures), 110 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.

Question 4

Has PFAS been detected in Hollis Brookline Hs water?

Accepted Answer

No PFAS testing data is available for Hollis Brookline Hs under the EPA's UCMR5 monitoring program.

Question 5

What water source does Hollis Brookline Hs use?

Accepted Answer

Hollis Brookline Hs uses Groundwater as its primary water source. It is classified as a Non-Transient Non-Community Water System, serving the same people for at least 6 months per year.

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

Where does Hollis Brookline Hs sit among U.S. public water systems?

Accepted Answer

According to EPA SDWIS population_served among sitemap-advertised systems (serving 500+), Hollis Brookline Hs ranks #20,039 of 29,740 by people served, and #131 of 284 in New Hampshire. Ordinals use population_served DESC among systems serving 500+ (the sitemap cohort). See /methodology#corpus-placement.

Question 8

How does Hollis Brookline Hs's violation count compare nationally?

Accepted Answer

Hollis Brookline Hs has 149 recorded EPA SDWIS violations, fewer than 19% of the 29,740 public water systems serving 500 or more people nationwide (the same sitemap cohort used for the corpus-placement ranking above). 81% of that cohort has fewer violations than Hollis Brookline Hs. 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
Antimony, Total	MCL	20	2009
Antimony, Total	MR	18	2011
Coliform (TCR)	MCL	16	2013
Arsenic	MR	8	2007
cis-1,2-Dichloroethylene	MR	4	2012
o-Dichlorobenzene	MR	4	2012
p-Dichlorobenzene	MR	4	2012
Vinyl chloride	MR	4	2012
1,1,1-Trichloroethane	MR	4	2012
Carbon tetrachloride	MR	4	2012
1,1,2-Trichloroethane	MR	4	2012
Tetrachloroethylene	MR	4	2012
Benzene	MR	4	2012
Toluene	MR	4	2012
1,2-Dichloroethane	MR	4	2012
Trichloroethylene	MR	4	2012
trans-1,2-Dichloroethylene	MR	4	2012
Xylenes, Total	MR	4	2012
1,2-Dichloropropane	MR	4	2012
1,2,4-Trichlorobenzene	MR	4	2012
CHLOROBENZENE	MR	4	2012
1,1-Dichloroethylene	MR	4	2012
Styrene	MR	4	2012
DICHLOROMETHANE	MR	4	2012
Ethylbenzene	MR	4	2012
Public Notice	Other	3	2013

Hollis Brookline Hs

Hollis Brookline Hs standing, high SDWIS violation third

System Details

Violation History

Violation Count vs. the National Corpus

Health-based violations on Hollis Brookline Hs

Nationwide peers

Cross-state systems with comparable violation load

Cross-state systems with smaller service footprints