EMERALD LAKE
PWSID: NH1141020 · Hillsboro, NH · Serves 1,300 people
According to EPA Safe Drinking Water Information System (SDWIS), EMERALD LAKE (PWSID NH1141020) in Hillsboro, NH is listed as a CWS water system covering about 1,300 people. The same extract lists 6 health-based violation records spanning 2013-2020. Those 6 health-based rows for EMERALD LAKE cover contaminants such as Arsenic, Groundwater Rule; they remain historical EPA registry entries, not a current compliance or drinkability score.
EMERALD LAKE has 6 health-based violation records in this historical extract. Monitoring and reporting records are not included.
PlainEnviro's health-based SDWIS extract covers monitoring and reporting violations only -- it does not include unresolved enforcement actions in progress or corrective steps a utility has taken since the extract date. 2 distinct EPA contaminant codes appear in this system's record, including Arsenic, Groundwater Rule. Recorded violations span 2013–2020. Day-to-day primacy enforcement for this system runs through the New Hampshire drinking-water program, not EPA directly.
A historical health-based record does not necessarily describe current water quality or compliance. The most authoritative current source is the utility's annual Consumer Confidence Report. For enforcement history and corrective-action orders, consult EPA ECHO and the New Hampshire state drinking-water program's public portal.
System Details
- EPA ID (PWSID)
- NH1141020
- System Type
- CWS
- Water Source
- Groundwater
- Location
- Hillsboro, NH
- Population Served
- 1,300
- Health Violations
- Yes (6)
What contaminants are in this water system?
| Contaminant | Violations | Health-Based |
|---|---|---|
| Arsenic | 4 | 4 |
| Groundwater Rule | 2 | 2 |
Violation History (6)
| Contaminant | Health | Date |
|---|---|---|
| Groundwater Rule | Yes | Oct 2, 2020 |
| Arsenic | Yes | Jan 1, 2020 |
| Arsenic | Yes | Oct 1, 2019 |
| Arsenic | Yes | Jul 1, 2019 |
| Arsenic | Yes | Apr 1, 2019 |
| Groundwater Rule | Yes | Apr 24, 2013 |
Frequently Asked Questions
What does EPA SDWIS list for EMERALD LAKE?
How many people does EMERALD LAKE serve?
What violations does EMERALD LAKE have?
What contaminants have been found in EMERALD LAKE water?
Compare beyond New Hampshire
Nationwide peers by violations & population served
Cross-state SDWIS systems nearest EMERALD LAKE on cumulative violation count (6) and EPA-reported population served (1,300). Violation-count peers include CHEROKEE WATER SYSTEM, LAME DEER WATER SYSTEM, FOUR BEARS WATER SYSTEM. Population peers include MAKAH NEAH BAY, OPPELO WATER DEPARTMENT, KATHERINE LANDING DWTP.
Similar violation count
Nearest cross-state community systems (500+ served) by SDWIS violations on record.
Similar population served
Nearest cross-state systems by EPA SDWIS population_served (same 500+ gate).
Nearby Water Systems
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About This Data
EMERALD LAKE (NH1141020) is drawn from EPA SDWIS. Nearby county systems in this extract include MANCHESTER WATER WORKS; PENNICHUCK WATER WORKS; MERRIMACK VILLAGE DIST; HUDSON WATER DEPT. Health-based rows (6 MCL/TT) are historical registry state, not a current drinkability score.
Source: U.S. Environmental Protection Agency, SDWIS Federal Reporting Services
Read our methodology - how this data is sourced, computed, and verified.