Santa Cruz Watershed: Page 2 of 2

Alum Gulch (Headwaters to Sonoita Creek) -- COMPLETED 

Waterbody ID: AZ15050301-561A, AZ15050301-561B, AZ15050301-561C
Pollutant(s): Cadmium, Copper, low pH, Zinc 
Primary Source: Inactive mines, natural background

Status:
TMDL completed and approved by EPA in 2003

Contact Us: Jason Sutter [email protected]

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Arivaca Lake -- COMPLETED

Waterbody ID: AZL15050304-0080
Pollutant(s): Mercury 
Primary Source: atmospheric deposition

Status:
TMDL completed and approved by EPA in 1999.

Contact Us: Susan Fitch [email protected]

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Harshaw Creek (Headwaters to 31o 27’ 43.9”/110o 43’ 21.1”) -- COMPLETED

Waterbody ID: AZ15050301-025
Pollutant(s): Copper, low pH, Zinc 
Primary Source: inactive mines, natural background

Status:
TMDL completed and approved by EPA in 2003

Contact Us: Jason Sutter [email protected]

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Lakeside Lake -- COMPLETED

Waterbody ID: AZL15050302-0760
Pollutant(s): low Dissolved Oxygen, Ammonia, Nutrients, high pH  
Primary Source: stormwater, internal nutrient cycling

Status:
TMDL completed and approved by EPA in 2005

Contact Us: Susan Fitch [email protected]

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Pena Blanca Lake -- COMPLETED    

Waterbody ID: AZL15050301-1070
Pollutant(s): Mercury
Primary Source: inactive mines, atmospheric deposition

Status:
TMDL completed and approved by EPA in 1999

Contact Us: Susan Fitch [email protected]

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Three R Canyon (Headwaters to Sonoita Creek) -- COMPLETED   

Waterbody ID: AZ15050301-558B, AZ15050301-558C
Pollutant(s): Cadmium, Copper, Zinc   
Primary Source: inactive mines, natural background

Status:
TMDL completed and approved by EPA in 2003

Contact Us: Jason Sutter [email protected]

Download: