Lake Carlsbad Deep
Eddy County, New MexicoView mapDirections
NMED publishes the water-quality measurements for Lake Carlsbad Deep. Here is what has been measured.
- Impaired · Fish consumption advisory
- Public access
- Limited data
Lake Carlsbad Deep in Eddy County, New Mexico has water-quality measurements published by NMED, shown here as reported. Water clarity: 2.7 ft visibility. Chlorophyll-a (algae): 2.7 µg/L.
Lake Carlsbad Deep is a lake in Eddy County, New Mexico. Limited fish-species data available. Public access is available.
Source: EPA Water Quality Portal sampling records, NMED, last sampled 2022-04-13. Methodology: how these readings are compared.
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Lake Carlsbad Deep is listed impaired under Clean Water Act §303(d) (IR 5) for fish consumption advisory, pCBs. Check local advisories before you swim.
Whether Lake Carlsbad Deep is safe to swim in today is a call for the New Mexico Environment Department and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Lake Carlsbad Deep
These are the measurements NMED publishes for Lake Carlsbad Deep, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Very murky, less than 2.7 ft of visibility. Chlorophyll-a 2.7 µg/L. TSI 52.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 2.7ft | 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) | 2.7µg/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. | 52 | Eutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
High nutrients, frequent algae, reduced clarity
Ask about Lake Carlsbad Deep
Answers come straight from the public measurements and survey records on this page.
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Stays near Lake Carlsbad Deep
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Fishing Lake Carlsbad Deep
EPA Impairment Status
Lake Carlsbad Deep 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: Aquatic life.
Source: EPA ATTAINS assessment unit NM-2203.B_00 · Official waterbody report
Nearby Lakes in Eddy County
Frequently asked questions about Lake Carlsbad Deep
Where is Lake Carlsbad Deep?
- Lake Carlsbad Deep is a lake in Eddy County, New Mexico. Its water-quality measurements are published by NMED and shown on this page as reported.
What is the water quality of Lake Carlsbad Deep?
- Lake Carlsbad Deep in Eddy County, New Mexico has water-quality measurements published by NMED, shown here as reported. Water clarity: 2.7 ft visibility. Chlorophyll-a (algae): 2.7 µg/L.
Is Lake Carlsbad Deep safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Lake Carlsbad Deep is listed impaired under Clean Water Act §303(d) (IR 5) for fish consumption advisory, pCBs. Check local advisories before you swim.
Can I fish at Lake Carlsbad Deep?
- Public access to Lake Carlsbad Deep is listed as yes on the lake record. Seasons, size and bag limits, and whether you need a license are set by New Mexico's fish and wildlife agency, so check its current regulations before you go.
Explore Lake Carlsbad Deep across LakeQuality
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Planning a trip around Carlsbad Caverns?
Lake Carlsbad Deep is about 28 miles from Carlsbad Caverns National Park. Crowds there swing hard by season, so the month you pick changes both how busy the park is and what lodging costs.
Best time to visit Carlsbad Caverns →More lakes in New Mexico
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Where this data comes from
12 measurements from 1 monitoring station, 2013–2022. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- NM Environmental Dept./SWQB
21NMEX_WQX12 samples · 2013–2022
Analytical methods
- Phosphorus by Colorimetry
- 10200 H 2 ~ Chlorophyll a-b-c Determination by spectrophotometer
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