![Discharge of the Roger Road wastewater treatment plant effluent into the Santa Cruz River, AZ, at the start of the study reach (mile 0). Effluent from the plant was collected over a 24-hour period coinciding with low, rising, peak (2), and falling discharge](photos/deil_variab/WWTP_RogerRoad_sm.jpg)
Discharge of the Roger Road wastewater treatment plant effluent into
the Santa Cruz River, AZ, at the start of the study reach (mile 0).
Effluent from the plant was collected over a 24-hour period coinciding
with low, rising, peak (2), and falling discharge
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![The flume of the Ina Road wastewater treatment plant at mile 4.2 of the study reach on the Santa Cruz River, AZ. The samples collected at this site and three others were analyzed for 102 emerging contaminants](photos/deil_variab/WWTP_InaRoad_sm.jpg)
The flume of the Ina Road wastewater treatment plant at mile 4.2 of
the study reach on the Santa Cruz River, AZ. The samples collected
at this site and three others were analyzed for 102 emerging contaminants |
![USGS scientists collecting a sample of wastewater effluent from the Ina Road wastewater treatment plant. The plant is located at mile 4.2 of the study reach on the Santa Cruz River, AZ, where the scientists studied the fate of 102 emerging contaminants over a 24-hour time period](photos/deil_variab/WWTP_InaRoad2_sm.jpg)
USGS scientists collecting a sample of wastewater effluent from the
Ina Road wastewater treatment plant. The plant is located at mile
4.2 of the study reach on the Santa Cruz River, AZ, where the scientists
studied the fate of 102 emerging contaminants over a 24-hour time
period |
![One of the sampling sites from an investigation on the temporal occurrence and persistence of emerging contaminants in an effluent-dependent stream (Site 3, mile 6 on the study reach, Santa Cruz River, AZ)](photos/deil_variab/SR_River_Cortaro_sm.jpg)
One of the sampling sites from an investigation on the temporal occurrence
and persistence of emerging contaminants in an effluent-dependent
stream (Site 3, mile 6 on the study reach, Santa Cruz River, AZ) |
![Over a 24-hour period coinciding with low, rising, peak (2), and falling streamflow the USGS collected samples from each of four sites along the Santa Cruz River, AZ. This is a view of site 4, which is 14 miles from the first wastewater discharge point on the river](photos/deil_variab/SR_River_Trico_sm.jpg)
Over a 24-hour period coinciding with low, rising, peak (2), and falling
streamflow the USGS collected samples from each of four sites along
the Santa Cruz River, AZ. This is a view of site 4, which is 14 miles
from the first wastewater discharge point on the river |
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