Search datasets
-
This data set compiles regulatory information about river and stream impairments within the Chesapeake Bay watershed as part of a Chesapeake Bay watershed multi-stressor meta-analysis project....
Search relevance: 130.72 | Views last month: 1 | Catalog Last Checked: September 10, 2026 at 10:36 PM -
Archive geospatial download files for pre-2015 ATTAINS data, including: Pre-2015 303(d) Listed Impaired Waters Reach Indexed Dataset Archive, Pre-2015 305(b) Waters As Assessed Reach Indexed...
Search relevance: 101.40 | Views last month: 1 | Catalog Last Checked: August 03, 2026 at 05:03 AM -
State water quality assessment decisions reported to EPA under the Integrated Report (IR), and Clean Water Act Sections 303(d) and 305(b). This service provides summary information for each...
Search relevance: 97.55 | Views last month: 8 | Catalog Last Checked: August 03, 2026 at 05:00 AM -
This is the 2014 Integrated Report. EPA approved this submission in accordance with Sections 303(d), 305(b), and 314(l) of the Clean Water Act, on October 16, 2015. The Integrated Report (IR)...
Search relevance: 86.75 | Views last month: 3 | Catalog Last Checked: September 10, 2026 at 06:48 PM -
This data set contains Missouri's 2016 Section 303(d) Listed Waters - Rivers and Streams and is a list of certain impaired waters in the State of Missouri. The list is a requirement of the Federal...
Search relevance: 83.65 | Views last month: 4 | Catalog Last Checked: September 10, 2026 at 06:06 PM -
This data set contains those Missouri waters which have been assessed as impaired in 2016, including waters on Missouri's EPA Approved 2016 Section 303(d) List, but also including waters not on...
Search relevance: 81.21 | Views last month: 1 | Catalog Last Checked: September 10, 2026 at 06:06 PM -
This data set contains those Missouri waters which have been assessed as impaired in 2016, including waters on Missouri's EPA Approved 2016 Section 303(d) List, but also including waters not on...
Search relevance: 78.07 | Views last month: 1 | Catalog Last Checked: September 10, 2026 at 06:06 PM -
This dataset summarizes impairment status for HUC12 watersheds at the CONUS scale using the EPA publicly available Assessment, Total Maximum Daily Load (TMDL) Tracking and Implementation System...
Search relevance: 76.40 | Views last month: 10 | Catalog Last Checked: September 10, 2026 at 08:41 PM -
The Santa Clara River Lakes, located along the San Andreas fault 19 miles northwest of Palmdale, California, were placed on the state’s “303(d) List” or “Impaired Water List” in 1996 for eutrophic...
Search relevance: 74.99 | Views last month: 1 | Catalog Last Checked: September 10, 2026 at 10:04 PM -
Municipal Separate Storm Sewer System (MS4) permitees including the California Department of Transportation need information about potential loads and yields (loads per unit area) of constituents...
Search relevance: 73.55 | Views last month: 1 | Catalog Last Checked: September 10, 2026 at 10:07 PM -
Water temperature data from the Pend Oreille River, Washington and Idaho, 2016-2018 The data were collected summer, 2016, 2017, and 2018. Continuous temperature loggers were deployed along the...
Search relevance: 72.31 | Views last month: 2 | Catalog Last Checked: September 10, 2026 at 06:57 PM -
This data release contains relevant datasets used in the analysis for the Chesapeake Bay stressor identification project, for which results are described in Fanelli and others (in review). For...
Search relevance: 71.41 | Views last month: 1 | Catalog Last Checked: September 10, 2026 at 07:57 PM -
These data were collected as part of a larger project to support Total Maximum Daily Load (TMDL) modeling in the Big Soos Creek basin. Water temperature, air temperature and sensor depth were...
Search relevance: 70.31 | Views last month: 0 | Catalog Last Checked: September 10, 2026 at 09:19 PM -
Connecticut 303(d) Impaired Waters 2024 is a subset of Connecticut 305(b) Assessed Waters 2024. If any one of the assigned designated uses is categorized as NOT Supporting, the assessed waterbody...
Search relevance: 64.20 | Views last month: 2 | Catalog Last Checked: September 10, 2026 at 06:40 PM -
Connecticut 303(d) Impaired Waters 2024 is a subset of Connecticut 305(b) Assessed Waters 2024. If any one of the assigned designated uses is categorized as NOT Supporting, the assessed waterbody...
Search relevance: 63.61 | Views last month: 2 | Catalog Last Checked: September 10, 2026 at 06:41 PM -
Connecticut 303(d) Impaired Waters 2024 is a subset of Connecticut 305(b) Assessed Waters 2024. If any one of the assigned designated uses is categorized as NOT Supporting, the assessed waterbody...
Search relevance: 63.55 | Views last month: 4 | Catalog Last Checked: September 10, 2026 at 06:41 PM -
Connecticut 303(d) Impaired Waters 2024 is a subset of Connecticut 305(b) Assessed Waters 2024. If any one of the assigned designated uses is categorized as NOT Supporting, the assessed waterbody...
Search relevance: 63.55 | Views last month: 4 | Catalog Last Checked: September 10, 2026 at 06:40 PM -
This dataset includes shallow surface sediment (top 0–2 cm interval) constituent concentration data (primarily) and microbial methylmercury production potential rate data (limited) collected from...
Search relevance: 62.36 | Views last month: 1 | Catalog Last Checked: September 10, 2026 at 07:45 PM -
The Cache Creek Settling Basin (CCSB) is a 13.3 km2 leveed basin located at the terminal drainage of the Cache Creek watershed, immediately NE of the town of Woodland (Yolo County), California and...
Search relevance: 61.99 | Views last month: 1 | Catalog Last Checked: September 10, 2026 at 09:25 PM -
The California Department of Water Resources (DWR) measured import and export loads of methylmercury (MeHg) and total mercury (THg) at four tidal wetlands in the Sacramento Valley of California to...
Search relevance: 61.85 | Views last month: 0 | Catalog Last Checked: October 24, 2026 at 08:51 PM
