Deal Lake
Monmouth County, New Jersey144 acresView mapDirections
No nutrient or algae sampling on record from NJDEP for this lake.
- Impaired · Ammonia
- Limited data
Deal Lake in Monmouth County, New Jersey has water-quality measurements published by NJDEP, shown here as reported. Surface area: 144 acres.
Deal Lake is a 144-acre lake in Monmouth County, New Jersey.
Source: EPA Water Quality Portal sampling records, your state environmental agency, last sampled 2023-09-19. Methodology: how these readings are compared.
Swimming conditions
No readingBacteria advisory
Nutrient and algae readings are not a swimming clearance. Deal Lake is listed impaired under Clean Water Act §303(d) (IR 5) for ammonia, mercury, nutrients (phosphorus, nitrogen), pathogens (E. coli, fecal), pesticides, pH / acidity, pCBs. Check local advisories before you swim.
Whether Deal Lake is safe to swim in today is a call for the New Jersey Department of Environmental Protection and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Deal Lake
These are the measurements NJDEP publishes for Deal Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
No clarity data.
Ask about Deal Lake
Answers come straight from the public measurements and survey records on this page.
Lake Details
Surface area
144 acres
No bathymetric survey has been published for Deal Lake, so its depth is not documented here.
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Stays near Deal Lake
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Fishing Deal Lake
Reservoir Info (USACE NID)
Deal Lake is a man-made reservoir impounded by the Deal Lake Dam, built primarily for recreation on the Hog Swamp Brook; earth-type dam, 11 ft tall and 850 ft long.
- Surface area
- 144 ac
- Normal storage
- 576 ac-ft
- Drainage area
- 6.2 sq mi
- Hazard class
- Low
- Owner
- City of Asbury Park
Source: USACE National Inventory of Dams, NID ID NJ00613 · Operator website
EPA Impairment Status
Deal Lake is officially listed as impaired under Clean Water Act §303(d) in the 2022 EPA reporting cycle (IR category 5).
Causes of impairment
Designated uses not supporting: Aquatic life, Fish consumption, Recreation.
A Total Maximum Daily Load (TMDL) plan has been approved.
Source: EPA ATTAINS assessment unit NJ02030104090030-01 · Official waterbody report
Nearby Lakes in Monmouth County
Frequently asked questions about Deal Lake
Where is Deal Lake?
- Deal Lake is a lake in Monmouth County, New Jersey. Its water-quality measurements are published by NJDEP and shown on this page as reported.
What is the water quality of Deal Lake?
- Deal Lake in Monmouth County, New Jersey has water-quality measurements published by NJDEP, shown here as reported. Surface area: 144 acres.
Is Deal Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Deal Lake is listed impaired under Clean Water Act §303(d) (IR 5) for ammonia, mercury, nutrients (phosphorus, nitrogen), pathogens (E. coli, fecal), pesticides, pH / acidity, pCBs. Check local advisories before you swim.
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Where this data comes from
24 measurements from 1 monitoring station, 2022–2023. Retrieved from the EPA Water Quality Portal on 2026-08-21.
Collected and reported by
- USGS New Jersey Water Science Center
USGS-NJ24 samples · 2022–2023
Monitoring station identifiers (1)
EPA condition classes from the National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See where the data comes from and data sources.
Other records on this page
Impairment status from EPA ATTAINS 303(d) database