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1 SUMMARY Regional Water Quality NEWSLETTER DATE: Report for January 2017 A Tempe, Glendale, Peoria, Chandler, Phoenix, ADEQ, CAP, SRP, Epcor NSF Central Arizona-Phoenix Long-Term Ecological Research ASU Regional Water Quality Partnership 1. Taste and Odor compounds were below detection limits in almost all WTP samples and canal samples. Both Saguaro and Bartlett were also below detection limits while Lake Pleasant had detectable concentrations below the threshold odor value of 10 ng/l. 2. UV absorbance values were very similar to the last several months and commensurate DOC concentrations would ranged from 2-3 mg/l based on historic norms. Sampling was limited because of canal maintenance 3. The primary source of surface water was the Verde River water at the time of sampling. CAP diversions to the Arizona Canal were the second largest source of water. Run-off to the reservoirs was over 300% above average at the time of sampling. 4. Microbial concentrations were for coliforms continue to remain lower as the temperature has decreased. The data is now showing a distinct trend with temperature. Many samples for Mycobacterium were nondetectable. 1
2 Topics Du Jour Microbial Water Quality Data Over the years the regional water quality center has collected data on numerous different topics but very little data has been collected on basic microbial water quality. Therefore, we have initiated microbial sampling for E. Coli, total coliforms and mycobacterium in the canal system to determine potential impacts on both water quality and sources of possible contamination. The values for coliforms for sampling in December are lower than the previous months consistent with the decrease in temperatures. Several samples had elevated levels of Mycobacterium. Note that Mycobacterium require one month to process and the samples are from November. All Values are cfu per 100 ml Sample E. coli Coliform Blank Average 0 0 AZ Canal at Highway 87 average South Canal below CAP Cross- connect average N/A N/A Cap Canal at Cross-connect average AZ Canal at 56th St. average AZ Canal- Central Avenue average Pima Average AZ Canal above CAP Cross-connect average Waddell Canal average Verde Beeline average AZ Canal below CAP Cross-connect average head of the Consolidated Canal average Middle of Consolidated Canal average Head of Tempe Canal average N/A N/A Mycobacterium (December) colonies 0 AZ Canal at Highway South Canal below CAP Cross- connect 39 Cap Canal at Cross-connect 0 AZ Canal at 56th St. 6 AZ Canal- Central Avenue 7 AZ Canal at Pima 3 AZ Canal above CAP Cross-connect 9 Waddell Canal 0 Verde Beeline CONT 1
3 AZ Canal below CAP Cross-connect CONT head of the Consolidated Canal 0 Middle of Consolidated Canal 0 Head of Tempe Canal N/A CONT Contaminated with other bacteria 2
4 Source Trend in supply Discharge to water supply system Salt River Verde River Reservoirs at 51% full Reservoirs At 59% full Quick Update of Water Supplies for January, 2017 (during day of canal/wtp January 9th, 2017) Flow into SRP Canal System Dissolved organic carbon Concentration (mg/l) ** 8 cfs 202 cfs into Arizona 2.9 mg/l Canal 265 cfs 95 cfs into South Canal 3.0 mg/l 110 cfs of CAP water into Arizona Canal Colorado River Lake Pleasant is 85.4% full (Lake Powell is 47.0% full) Lake Pleasant is* releasing 0 cfs Groundwater Pumping *** 158 cfs pumping by SRP *CAP is not releasing from Lake Pleasant **Concentration of DOC in the terminal reservoir ***CAP water is being delivered to the Arizona Canal. 158 cfs Groundwater Pumping into SRP Canals 3.0 mg/l 0.5 to 1 mg/l Data from the following websites:
5 The following views are from SRP website, and show which wells are operating along the various canals. 4
6 5
7 Dissolved Organic Carbon In Reservoirs and Treatment Plants DOC = Dissolved organic carbon UV254 = ultraviolet absorbance at 254 nm (an indicator of aromatic carbon content) SUVA = UV254/DOC TDN = Total dissolved nitrogen (mostly nitrate from groundwater) January 2017 Data Reservoir Samples - January 5th-6th, 2017 Sample Description Location DOC (mg/l) UV254 (l/cm) SUVA (L/mgm) Havasu (March) N/A #VALUE! N/A Lake Pleasant (March) Epilimnion N/A #VALUE! N/A Hypolimnion N/A #VALUE! N/A Verde River at Tangle N/A #VALUE! N/A Verde River at Beeline Highway N/A #VALUE! N/A Bartlett Reservoir Epilmnion N/A #VALUE! N/A Hypolimnion N/A N/A #VALUE! N/A Epilimnion N/A #VALUE! N/A Saguaro Lake Epi - Duplicate N/A N/A #VALUE! N/A Hypolimnion N/A N/A #VALUE! N/A Salt River at Blue Point Bridge N/A N/A #VALUE! N/A Salt River above Roosevelt N/A #VALUE! N/A Roosevelt Reservoir Point 1 Epilmnion N/A N/A N/A N/A Hypolimnion N/A N/A N/A N/A Roosevelt Reservoir Point 2 Epilmnion N/A N/A N/A N/A Hypolimnion N/A N/A N/A N/A Apache Reservoir Point 1 Epilmnion N/A N/A N/A N/A Hypolimnion N/A N/A N/A N/A Apache Reservoir Point 2 Epilmnion N/A N/A N/A N/A Hypolimnion N/A N/A N/A N/A Canyon Reservoir Point 1 Epilmnion N/A N/A N/A N/A Hypolimnion N/A N/A N/A N/A Canyon Reservoir Point 2 Epilmnion N/A N/A N/A N/A Hypolimnion N/A N/A N/A N/A TDN (mg/l 6
8 Water Treatment Plants- January 5th-6th, 2017 Sample Description DOC (mg/l) UV254 (l/cm) SUVA (L/mg-m) TDN (mg/l Union Hills Inlet N/A #VALUE! N/A Union Hills Treated N/A #VALUE! N/A Tempe North Inlet N/A N/A #VALUE! N/A Tempe North Plant Treated N/A N/A #VALUE! N/A Tempe South Inlet N/A N/A #VALUE! N/A Tempe South Plant Treated N/A N/A #VALUE! N/A Greenway WTP Inlet N/A N/A #VALUE! N/A Greenway WTP Treated N/A N/A #VALUE! N/A Glendale WTP Inlet N/A N/A #VALUE! N/A Glendale WTP Treated N/A N/A #VALUE! N/A Anthem WTP Inlet N/A #VALUE! N/A Anthem WTP Treated N/A #VALUE! N/A 24th Street WTP Inlet N/A #VALUE! N/A 24th Street WTP Treated N/A #VALUE! N/A Chandler WTP Inlet N/A N/A #VALUE! N/A Chandler WTP Treated N/A N/A #VALUE! N/A Rivers and Canals- January 5th-6th, 2017 Sample Description DOC (mg/l) UV254 (l/cm) SUVA (L/mg-m) TDN (mg/l Waddell Canal N/A #VALUE! N/A Anthem WTP Inlet N/A #VALUE! N/A Union Hills Inlet N/A #VALUE! N/A CAP Salt-Gila Pumping Station (June) N/A #VALUE! N/A CAP Mesa Turnout (June) N/A #VALUE! N/A CAP Canal at Cross-connect N/A #VALUE! N/A Salt Blue pt. Bridge N/A N/A #VALUE! N/A Verde Beeline N/A #VALUE! N/A AZ Canal above CAP Cross-connect N/A #VALUE! N/A AZ Canal below CAP Cross-connect N/A #VALUE! N/A AZ Canal at Highway 87 N/A #VALUE! N/A AZ Canal at Pima Rd. N/A #VALUE! N/A AZ Canal at 56th St. N/A #VALUE! N/A AZ Canal - Central Avenue N/A #VALUE! N/A AZ Canal - Inlet to Glendale WTP N/A N/A #VALUE! N/A AZ Canal - Inlet to Greenway WTP N/A N/A #VALUE! N/A South Canal below CAP Cross-connect N/A N/A #VALUE! N/A Head of Tempe Canal N/A #VALUE! N/A 7
9 Tempe Canal - Inlet to Tempe's South Plant N/A N/A #VALUE! N/A Head of the Consolidated Canal N/A #VALUE! N/A Middle of Consolidated Canal N/A #VALUE! N/A Chandler WTP - Inlet N/A N/A #VALUE! N/A 8
10 Taste and Odor MIB, Geosmin and Cyclocitral are compounds naturally produced by algae in our reservoirs and canals, usually when the water is warmer and algae are growing/decaying more rapidly. They are non toxic, but detectable to consumers of water because of their earthy-musty-moldy odor. The human nose can detect these in drinking water because the compounds are semi-volatile. Since compounds are more volatile from warmer water, these tend to be more noticable in the summer and fall. The human nose can detect roughly 10 ng/l of these compounds. Our team collects samples from the water sources and raw/treated WTP samples. Table 1 - Water Treatment Plants January 9, 2017 Sample Description MIB (ng/l) Geosmin (ng/l) Union Hills Inlet Union Hills Treated Tempe North Inlet ns ns Tempe North Plant ns ns Treated Tempe South WTP ns ns Tempe South Plant ns ns Treated Anthem Inlet Anthem Treated Chandler Inlet ns ns Chandler Treated ns ns Greenway WTP Inlet ns ns Greenway WTP Treated ns ns Glendale WTP Inlet ns ns Glendale WTP Treated ns ns 24th St. WTP Inlet 4.9 <2.0 24th St. WTP Outlet 9
11 Table 2 - Canal Sampling January 9, 2017 System Sample Description MIB (ng/l) Geosmin (ng/l) CAP Waddell Canal AZ Canal South Union Hills Inlet CAP Canal at Crossconnect Salt Blue Pt Bridge Verde Beeline AZ Canal above CAP Cross-connect AZ Canal below CAP Cross-connect AZ Canal at Highway <2.0 AZ Canal at Pima Rd. AZ Canal at 56th St. AZ Canal - Central 5.0 <2.0 Avenue AZ Canal - Inlet to Glendale WTP ns ns Head of the Consolidated Canal Middle of the Consolidated Canal South Canal below CAP Cross-connect Tempe Head of the Tempe Canal 6.2 <2.0 Canals Tempe Canal - Inlet to Tempe's South Plant ns ns ns ns Salt-Gila (Dec) 2.5 <2.0 Mesa Turnout (Dec) 2.3 <2.0 10
12 Table 3 - Reservoir Samples January 3, 2017 Sample Description Location MIB (ng/l) Geosmin (ng/l) Lake Pleasant (Dec) Eplimnion 3.9 <2.0 Lake Pleasant Hypolimnion 5.1 <2.0 (Dec) Verde Beeline Bartlett Reservoir Epilimnion ns ns Bartlett Reservoir Epi-near dock Bartlett Reservoir Hypolimnion ns ns Salt BluePt Bridge Saguaro Lake Epilimnion ns ns Saguaro Lake Epi - ns ns Duplicate Saguaro Lake Epi-near dock Saguaro Lake Hypolimnion ns ns Lake Havasu (Dec) Verde River at Tangle Creek (Dec) Roosevelt at Salt River Inlet (Dec) 11
SUMMARY.
SUMMARY Regional Water Quality NEWSLETTER DATE: Report for December 2016 A Tempe, Glendale, Peoria, Chandler, Phoenix, ADEQ, CAP, SRP, Epcor NSF Central Arizona-Phoenix Long-Term Ecological Research ASU
More informationSUMMARY.
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