The study is comprised of daily survey data consisting of high resolution mapping and discrete sample collection of nutrients, phytoplankton, and related water quality constituents conducted in the Sacramento River, Georgiana Slough, and the North and South Forks of the Mokelumne River on August 28 and September 10-12, 2019, coincident with planned holds of treated wastewater effluent from Sacramento Regional Wastewater Treatment Plant (SRWTP) on August 27 and September 9-11, 2019.

City of Sacramento, Department of Utilities Sewer Basins

This polygon shapefile depicts boundaries of the Sacramento Regional County Sanitation District (SRCSD) in the County of Sacramento, California. SRCSD owns and operates the regional wastewater conveyance system and the Sacramento Regional Wastewater Treatment Plant located near Elk Grove, California and provides wastewater conveyance and treatment services to residential, industrial and commercial customers throughout unincorporated Sacramento County; the cities of Citrus Heights, Elk Grove, Folsom, Rancho Cordova, Sacramento and West Sacramento; and the communities of Courtland and Walnut Grove. This layer is part of a collection of data originally produced for Sacramento County, California.

Pathways for microplastics to aquatic ecosystems include agricultural runoff, urban runoff, and treated or untreated wastewater. To better understand the importance of each pathway as a vector for microplastics into waterbodies and for mitigation, we sampled agricultural runoff, urban stormwater runoff, treated wastewater effluent, and the waterbodies downstream in four regions across North America: the Sacramento Delta, the Mississippi River, Lake Ontario, and Chesapeake Bay. The highest concentrations of microplastics in each pathway varied by region: agricultural runoff in the Sacramento Delta and Mississippi River, urban stormwater runoff in Lake Ontario, and treated wastewater effluent in Chesapeake Bay. Material types were diverse and not unique across pathways. However, a PERMANOVA found significant differences in morphological assemblages among pathways (p < 0.005), suggesting fibers as a signature of agricultural runoff and treated wastewater effluent and rubbery fragments as a signature of stormwater. Moreover, the relationship between watershed characteristics and particle concentrations varied across watersheds (e.g., with agricultural parameters only being important in the Sacramento Delta). Overall, our results suggest that local monitoring is essential to inform effective mitigation strategies and that assessing the assemblages of morphologies should be prioritized in monitoring programs to identify important pathways of contamination.

Concentrations of N, S, and ORF1a genes in settled solids from 8 wastewater treatment plants in the Bay Area and Sacramento Area. These projects are part of project SCAN. Also PMMoV RNA, bovine coronavirus recovery and TSS of the influent on the days samples were collected are provided.

General water quality and toxicity data collected from 1998 to 2007 for compliance with National Pollution Discharge Elimination System (NPDES) permits by the following wastewater treatment plants:

Brentwood Wastewater Treatment Plant; Discovery Bay Wastewater Treatment Plant; Manteca Wastewater Treatment Plant; Merced Wastewater Treatment Plant; Modesto Wastewater Treatment Plant; Mountain House Wastewater Treatment Plant; Rio Vista Beach Wastewater Treatment Plant; Sacramento Regional Wastewater Treatment Plant; Stockton Wastewater Treatment Plant; Tracy Wastewater Treatment Plant; Turlock Wastewater Treatment Plant; White Slough Water Pollution Control Plant (City of Lodi); Vacaville Wastewater Treatment Plant.

Note: These data were transcribed from Excel and pdf files for formatting purposes and are presented as provided by the wastewater treatment plants.

A map used in the Capital Project Reports application to communicate the schedule, quality and cost of active sewer projects to executives in the organization.

This polygon shapefile depicts the service boundary fo the Sacramento Area Sewer District (SASD) in the County of Sacramento, California. The SASD is a sewer utility providing service to more than one million residential, commercial and industrial customers in the Sacramento region, including the unincorporated areas of Sacramento County; the cities of Citrus Heights, Rancho Cordova, and Elk Grove; as well as portions of the cities of Folsom and Sacramento. SASD is overseen by a Board of Directors consisting of the five Sacramento County Supervisors and the mayors (or their designees) of the cities of Citrus Heights, Elk Grove, Folsom, Rancho Cordova and Sacramento. This layer is part of a collection of data originally produced for Sacramento County, California.