Kaibab Lake
Coconino County, Arizona75 acresView mapDirections
Not enough samples to grade — no nutrient or algae measurement meets the evidence bar (at least 3 samples within 10 years). No letter yet. Here is what we do have.
- Impaired · Metals (other than mercury)
- Public access
- Limited data
Kaibab Lake in Coconino County, Arizona is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 75 acres.
- Area
- 75 acres
- Trend
- ↑ Improving
- Public access
- Yes
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Watch Kaibab Lake’s letter
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Why Kaibab Lake has no grade
We grade a lake only when the monitoring record supports a letter: at least three phosphorus or chlorophyll-a samples in the last ten years, scored against EPA National Lakes Assessment thresholds for this lake’s ecoregion. For Kaibab Lake, no nutrient or algae measurement meets the evidence bar (at least 3 samples within 10 years).
Not Rated is not an F. It is EPA Integrated Reporting Category 3 — insufficient information. The water here may be excellent or poor; nobody has measured enough of it to say. Everything below that has been measured is still reported on this page.
Sampling is run by ADEQ and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.
Kaibab Lake is a 75-acre lake in Coconino County, Arizona. Overall water quality is improving over recent sampling years. Limited fish-species data available. Public access is available with 1 public boat landing.
Source: EPA Water Quality Portal sampling records, ADEQ, last sampled 2025-10-31. Grade methodology: LakeQuality methodology.
What Kaibab Lake is good for
From access and monitoring records, not editorial picks.
- Boat launch1 documented ramp
- Camping3 public campgrounds nearby
Swimming Safety
Not ratedLimited data
The letter is not a swimming clearance. Kaibab Lake is listed impaired under Clean Water Act §303(d) (IR 5) for metals (other than mercury). Check local advisories before you swim.
Water quality measurements for Kaibab Lake
These readings exist but are not enough for an A–F grade — see why.
No clarity data.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No recent samples | |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples |
Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 75 acres |
| Public Access | Yes |
No bathymetric survey has been published for Kaibab Lake, so its depth is not documented here.
Recreation & Access
- Kaibab LakePublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Public campgrounds near Kaibab Lake
- Kaibab Lake Group Cg0.1 km
- Kaibab Lake0.2 km
- Kaibab Lake0.3 km
Nearest public campgrounds in the USGS National Map inventory, within about 3 miles. An empty list means USGS records no campground that close, which is not the same as camping being unavailable. Where the source gives an official reservation link, it is used; the cabin and hotel search does not cover campsites. More camping lakes
Fishing Kaibab Lake
Water Quality Trend: ↑ Improving
Based on 4 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↑ Improving | +0.041 m/yr | 4 |
| Phosphorus | ↑ Improving | -209.45 µg/L/yr | 3 |
Reservoir Info (USACE NID)
Kaibab Lake is a man-made reservoir impounded by the Kaibab (completed 1934), built primarily for recreation on the Dogtown Wash; rockfill-type dam, 44 ft tall and 664 ft long.
- Surface area
- 75 ac
- Normal storage
- 890 ac-ft
- Max storage
- 967 ac-ft
- Drainage area
- 18 sq mi
- Hazard class
- Low
- Owner
- CITY OF WILLIAMS
All listed purposes: Recreation;Water Supply.
Source: USACE National Inventory of Dams, NID ID AZ00093 · Operator website
EPA Impairment Status
Kaibab Lake is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 5).
Causes of impairment
Source: EPA ATTAINS assessment unit AZL15010004-0710_00 · Official waterbody report
Nearby Lakes in Coconino County
Frequently asked questions about Kaibab Lake
Where is Kaibab Lake?
- Kaibab Lake is a lake in Coconino County, Arizona. LakeQuality has not rated this lake (UNRATED) — no nutrient or algae measurement meets the evidence bar (at least 3 samples within 10 years).
What is the water quality grade for Kaibab Lake?
- Kaibab Lake in Coconino County, Arizona is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 75 acres.
Is Kaibab Lake safe to swim in?
- The letter is not a swimming clearance. Kaibab Lake is listed impaired under Clean Water Act §303(d) (IR 5) for metals (other than mercury). Check local advisories before you swim.
Are there boat ramps on Kaibab Lake?
- Kaibab Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Kaibab Lake. Public access is listed as yes.
Are there campgrounds on Kaibab Lake?
- Kaibab Lake has 3 public campgrounds from USGS The National Map within 5 km, including Kaibab Lake Group Cg, Kaibab Lake, Kaibab Lake. This is a location join, not a booking. Cabins and hotels are listed separately; campsite reservations use the official link when the source provides one.
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Where this data comes from
6 measurements from 2 monitoring stations, 2024–2025. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Great Lakes Environmental Center
GLEC3 samples · 2025 - AZDEQ_SW
AZDEQ_SW3 samples · 2024–2025
Analytical methods
- 4500 P E ~ Phosphorus in Water by Colorimetry- Ascorbic Acid Method
- 300.0 ~ EPA; Determination of Inorganic Anions by Ion Chromatography
- SM 4500 PE
- EPA 365.1
- FIELD
Monitoring station identifiers (2)
Grade thresholds from the EPA National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See how grades are calculated and data sources.
Other records on this page
Impairment status from EPA ATTAINS 303(d) database
Named boat-access points from the USGS National Boat Ramps inventory
Public campgrounds from USGS The National Map Structures, within about 3 miles