Dam the Country Is First
Dam the Country Is First in Unknown, Mexico has official water-quality measurements, not a LakeQuality A–F grade. Water clarity: 0.5 m visibility. Phosphorus: 16.1 µg/L. Chlorophyll-a (algae): 5.9 µg/L.
- Clarity
- 0.5 m
Why Dam the Country Is First has no A–F grade
Dam the Country Is First in Mexico is published with the authority's own measurements, not a LakeQuality letter. official authority class; not a LakeQuality A–F letter Sampling here has recorded water clarity, phosphorus and algae (chlorophyll-a).
A letter on the LakeQuality scale would be an invention, not an official class. Everything below that has been measured is still reported on this page.
Monitoring: the National Water Commission of Mexico (CONAGUA), via UNEP GEMS/Water.
Dam the Country Is First is a lake in Unknown County, Mexico.
Source: EPA Water Quality Portal sampling records, your state environmental agency, last sampled 2021-09-26. Grade methodology: LakeGrade methodology.
Watch Dam the Country Is First water quality
Subscribe for LakeQuality updates by email. No spam, unsubscribe anytime.
Swimming Safety
Not ratedLimited data
Not rated for swimming — there is not enough monitoring data to judge this lake
Water quality measurements for Dam the Country Is First
These readings exist but do not meet the evidence bar for an A–F grade — see why.
Very murky, less than 1.7 ft of visibility. Phosphorus level: 16.1 µg/L. Chlorophyll-a: 5.9 µg/L. Trophic State Index: 54.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 0.53 m | Not graded |
| Phosphorus | 16.1 µg/L | Not graded |
| Chlorophyll-a (Algae) | 5.9 µg/L | Not graded |
| Trophic State Index (TSI) | 54 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Where to stay near Dam the Country Is First
Compare lakeside cabins, hotels, and vacation rentals near Dam the Country Is First in Unknown, Mexico — live availability and prices for your trip. Switch the map to Satellite to see the lake and how close each stay is to the water.
Top-rated places to stay near Dam the Country Is First
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
Fishing Dam the Country Is First
Frequently asked questions about Dam the Country Is First
What is the water quality of Dam the Country Is First?
- Dam the Country Is First in Unknown, Mexico has official water-quality measurements, not a LakeQuality A–F grade. Water clarity: 0.5 m visibility. Phosphorus: 16.1 µg/L. Chlorophyll-a (algae): 5.9 µg/L.
Is Dam the Country Is First safe to swim in?
- Dam the Country Is First has official nutrient and clarity measurements, not a bacteria swim class and not a safety clearance. Algal blooms, currents, and depth are not covered. Always check local notices before swimming.
Explore Dam the Country Is First across LakeGrade
More lakes in Mexico
Where this data comes from
24 measurements from 1 monitoring station, 2016–2021. Retrieved from UNEP GEMS/Water GFQA (not the EPA Water Quality Portal) on 2026-08-16.
Collected and reported by
- Comisión Nacional del Agua
comisionnacionaldelagua24 samples · —
Analytical methods
- GEMStat OPEN / CC BY 4.0
Monitoring station identifiers (1)
MEX02868
Authority classifications are stored separately from LakeQuality A–F letters and are never blended. See methodology and data sources.
Data Sources
Water quality data from the EPA Water Quality Portal
Grade thresholds from the EPA National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion
Most recent sample: 2021-09-26
Monitoring stations: 1