Water Quality Page

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Water Quality - Colorado River The quality of water in the Colorado River is important. Water quality includes, but not limited to, temperature, water column structure, total suspended solids, dissolved oxygen, total dissolved solids, and chlorophyll.

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Water Quality Links

General

GCMRC Monitoring Stations Map

[http://www.gcmrc.gov/discharge_qw_sediment/stations/GCDAMP GCMRC Maps and Spatial Data] [1]

Temperature

USGS 09380000 COLORADO RIVER AT LEES FERRY, AZ

[2]

USGS 09380000 COLORADO RIVER AT LEES FERRY, AZ

[3]

USGS 09421500 COLORADO RV BLW HOOVER DAM, AZ-NV

[4]

Salinity

Salinity Control Forum

[5]

USCODE-2011-title43-chap32A-1.pdf -The codified version of the Colorado River Basin Salinity Control Act as amended. It includes both Title I and Title II. It also includes footnotes and history of amendments.

2011 Water quality standards for salinity

[6]

Station ---------------- Salinity in mg/L
- Below Hoover Dam 723
- Below Parker Dam 747
- At Imperial Dam 879

[7] Glen Canyon Dam

USGS

[8]

Lake Mead

Park Service

[9]

USGS

[10]

NDEP Lake Mead Water Quality Forum

[11]

HFE experiments on water quality

[12]

Lower Colorado River Studies

[13]

MONITORING HISTORY

Water-quality sampling in Lake Powell was initiated by the USBR in 1964 and continued through 1990.
Glen Canyon Environmental Studies conducted the monitoring from 1990-1996.
The USGS Water Resources Discipline conducted monitoring in Lake Powell on several dates in 1992, 1994, and 1995.
Since 1997, monitoring has been conducted by the USGS-GCMRC.

State of the Colorado River Ecosystem in Grand Canyon- USGS Circular 1282