North Delaney Lake
Jackson County, Colorado258 acresView mapDirections
Colorado WQCD publishes the water-quality measurements for North Delaney Lake. Here is what has been measured.
- Impaired · Metals (other than mercury)
- 26 ft max depth
- Public access
- Limited data
North Delaney Lake in Jackson County, Colorado has water-quality measurements published by Colorado WQCD, shown here as reported. Water clarity: 8.2 ft visibility. Chlorophyll-a (algae): 1 µg/L. Surface area: 258 acres.
North Delaney Lake is a 258-acre lake in Jackson County, Colorado with an estimated average depth of about 26 feet. Limited fish-species data available. Public access is available with 1 public boat landing.
Source: EPA Water Quality Portal sampling records, CDPHE, last sampled 2025-07-15. Methodology: how these readings are compared.
What North Delaney Lake is good for
From access and monitoring records, not editorial picks.
- Boat launch1 documented ramp
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. North Delaney Lake is listed impaired under Clean Water Act §303(d) (IR 5) for metals (other than mercury). Check local advisories before you swim.
Whether North Delaney Lake is safe to swim in today is a call for the Water Quality Control Division of the Colorado Department of Public Health and Environment and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for North Delaney Lake
These are the measurements Colorado WQCD publishes for North Delaney Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Moderate clarity, visible to about 8.2 ft. Chlorophyll-a 1 µg/L. TSI 39.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 8.2ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | No reading The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential. | |
| Chlorophyll-a (algae) | 1µg/L | Measured, not scored The green pigment in algae — a direct measure of how much algae is in the water. |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 39 | Oligotrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Low nutrients, clear water. No reading is a swimming clearance.
Ask about North Delaney Lake
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
~26 ft est.
Surface area
258 acres
Public access
Yes
Listed by Colorado WQCD
Depth marked “est.” is a modeled maximum from GLOBathy (Khazaei et al. 2022, CC0), not a measured survey. Colorado has not published bathymetry for North Delaney Lake.
Lake Size & Watershed
Watershed (drainage) area
0 sq mi
HydroLAKES / HydroSHEDS
Shoreline
2.3 mi
HydroLAKES / HydroSHEDS
Elevation
8,163 ft
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS). Mean depth here is modelled, not surveyed — HydroLAKES v1.0 estimates lake depth from surrounding terrain rather than from soundings. Treat it as an approximation, and prefer a state bathymetric survey where one exists.
Recreation & Access
- Delaney Butte Lakes State Wildlife AreaPublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
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Stays near North Delaney Lake
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Fishing North Delaney Lake
Reservoir Info (USACE NID)
North Delaney Lake is a man-made reservoir impounded by the Laune (completed 1971), built primarily for irrigation on the Roaring Fork; earth-type dam, 27 ft tall and 460 ft long.
- Surface area
- 258 ac
- Normal storage
- 3,722 ac-ft
- Max storage
- 4,496 ac-ft
- Drainage area
- 1 sq mi
- Hazard class
- Low
- Owner
- HUMBERT RANCHES INC. (HUMBERT, JESSIE)
All listed purposes: Irrigation;Fire Protection, Stock, Or Small Fish Pond;Recreation.
Source: USACE National Inventory of Dams, NID ID CO00996 · Operator website · Matched by proximity (0.69 km)
EPA Impairment Status
North Delaney Lake is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 5).
Causes of impairment
Designated uses not supporting: Drinking water.
A Total Maximum Daily Load (TMDL) plan has been approved.
Source: EPA ATTAINS assessment unit COUCNP09_C · Official waterbody report
Nearby Lakes in Jackson County
Frequently asked questions about North Delaney Lake
Where is North Delaney Lake?
- North Delaney Lake is a lake in Jackson County, Colorado. Its water-quality measurements are published by Colorado WQCD and shown on this page as reported.
What is the water quality of North Delaney Lake?
- North Delaney Lake in Jackson County, Colorado has water-quality measurements published by Colorado WQCD, shown here as reported. Water clarity: 8.2 ft visibility. Chlorophyll-a (algae): 1 µg/L. Surface area: 258 acres.
Is North Delaney Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. North Delaney Lake is listed impaired under Clean Water Act §303(d) (IR 5) for metals (other than mercury). Check local advisories before you swim.
How deep is North Delaney Lake?
- No published bathymetric survey covers North Delaney Lake, so its depth has not been measured. The HydroLAKES global model estimates an average depth of about 26 feet, but that is a modelled estimate derived from surrounding terrain rather than a measurement on the water, so treat it as approximate. The lake covers 258 acres.
Are there boat ramps on North Delaney Lake?
- North Delaney Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Delaney Butte Lakes State Wildlife Area. Public access is listed as yes.
Can I fish at North Delaney Lake?
- North Delaney Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Seasons, size and bag limits, and whether you need a license are set by Colorado's fish and wildlife agency, so check its current regulations before you go.
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Where this data comes from
2 measurements from 1 monitoring station, 2025. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Colorado Dept. of Public Health & Environment-WQCD
21COL001_WQX2 samples · 2025
Analytical methods
- Secchi disk depth measurement
- 10200 H ~ Chlorophyll a-b-c Determination
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
Lake size & watershed from HydroLAKES (HydroSHEDS)
Named boat-access points from the USGS National Boat Ramps inventory