Regional Water Quality Issues: Reducing Taste and Odor and Other Algae-Related Problems for Surface Water Supplies in Arid Environments
(A Cooperative Research and Implementation Program among ASU, SRP, CAP, and the Cities of Phoenix, Tempe, Glendale, and Peoria)
Download the Most Recent Regional Water Quality Newsletter (and previous archived newsletters)
Download Susan Neuer Final Report for AWWA TEC and WQTD Taste and Odor Committee entitled "Feasibility Study for Early Warning Systems for Algae-induced Tastes and Odors"
Download our September 2009 Workshop presentation
Download October 2008 Workshop presentation
Download September 2007 Workshop presentation
Download September 2006 Workshop presentation
Click here to download the August 2005 Workshop Presentation on Regional Water Quality Issues
Click Here to Download the 2004 Final Report (6.5 MB PDF)
Click Here to Download (4.9 MB pdf) the 2003 Final Report (posted August 2004)
Click Here to download (2.8 MB pdf) the Final Technical Report (1999-2002)
Click Here to download (1.4 MB pdf) a Utility User-Friendly Guidance Manual for T&O Control (2002)
Click Here to download (2.8 MB pdf) the final project presentation (August 8, 2002)
Go to T&O Implementation Selection Flowchart
Go to a Algae Taxonomic Guide for T&O Causing Algae
Click here for links to T&O websites
Connect to Information on Algae Toxins (June 2004 Updated)
Click here to download MS Thesis on Algal Toxins by Michelle Cummings 2002
The goal of the proposed project is to develop a comprehensive management strategy to reduce algae-related water quality problems for drinking water supplies in arid environments.
All data presented on this website are preliminary results, and are intended for use as guidance by regional water quality operators in the Phoenix-metropolitan area. Contact Paul Westerhoff at 480-965-2885 for questions (p.westerhoff@asu.edu ).
Here is a link to a University of Arizona study of the water supply for metro-Phoenix: http://ag.arizona.edu/limnology/watersheds/
Site Descriptions
Field sampling sites included locations along the CAP and SRP canals and the Verde and Salt Rivers including Bartlett Lake, Saguaro Lake and Lake Pleasant (Table 1, Figure 1). Locations along canals, rivers, and water treatment plants throughout the Valley region were selected as sample sites in order to assess taste and odor problems through out the entire water collection system. A multi-barrier approach will be taken to address taste and odor problems in drinking water supplies. Sample sites were selected to include locations along the entire water collection system in the Valley; from source water in rivers and lakes to finished water in water treatment plants. Water samples were collected monthly from August 1999 to June 2000 in the CAP, Verde River, Salt River, and SRP sample clusters.
Table 1 - Description of sample sites
|
site # |
site description |
Latitude |
Longitude |
|
|
CAP Canal
Cluster |
|
|
|
R1 |
CAP canal above Waddell Canal |
N33 46.893 |
W112 17.174 |
|
R2A |
Lake Pleasant integrated sample |
N33 51.105 |
W112 16.213 |
|
R2B |
Lake Pleasant integrated sample |
N33 51.105 |
W112 16.213 |
|
R3 |
Waddell Canal |
N33 47.897 |
W112 15.422 |
|
R4 |
Cap Canal at 7th St. |
N33 42.079 |
W112 03.935 |
|
R11 |
CAP Canal at Cross-connect |
N33 30.858 |
W111 41.603 |
|
|
Verde River
Cluster |
|
|
|
R5 |
Verde River btwn Horseshoe and Bartlett |
N33 57.620 |
W111 42.280 |
|
R6A |
Bartlett Lake near outlet |
N34 00.000 |
W111 05.625 |
|
R6B |
Bartlett Lake near outlet |
N34 00.000 |
W111 05.625 |
|
R7 |
Verde River below Bartlett Lake |
N33 50.304 |
W111 38.595 |
|
R20 |
Verde River at Tangle (USGS) |
|
|
|
|
Salt River
Cluster |
|
|
|
R8 |
Salt River inlet to Saguaro Lake |
N33 33.349 |
W111 27.450 |
|
R9A |
Saguaro Lake near inlet |
N33 34.053 |
W111 32.229 |
|
R9B |
Saguaro Lake near inlet |
N33 34.053 |
W111 32.229 |
|
R10 |
Salt River below Saguaro (Blue Point Bridge) |
N33 33.335 |
W111 34.436 |
|
|
SRP Canal
Cluster |
|
|
|
R12 |
AZ Canal above CAP Cross-connect |
N33 31.022 |
W111 41.589 |
|
R13 |
AZ Canal below CAP Cross-connect |
N33 30.941 |
W111 42.023 |
|
R14 |
AZ Canal - Inlet to Squaw Peak WTP |
|
|
|
R15 |
Squaw Peak WTP treated water |
|
|
|
R16 |
AZ Canal - Inlet to Deer Valley WTP |
|
|
|
R17 |
Deer Valley WTP treated water |
|
|
|
R18 |
South Canal at Val Vista WTP |
|
|
|
R19 |
Val Vista WTP treated water |
|
|
| R21 | AZ Canal at Central | ||
| R22 | AZ Canal at 56th Street |
Figure 1 - Map of
Sample Sites
MIB Data
Contour plot for MIB concentration as a function of sampling date and sampling site location
Click here to return to the homepage of Paul Westerhoff or email me at p.westerhoff@asu.edu
Milt Sommerfeld can be emailed at Milton.Sommerfeld@asu.edu
Larry Baker can be reached at
Baker Environmental Consulting
8001 Greenwood Drive
Moundview, MN 55112
Phone 763-783-8227
email bakerenv@earthlink.net
Web page http://home.earthlink.net/~bakerenv/index.html