Images

War Branch is a creek in Rockingham County, Virginia. Its 11 square mile watershed includes mostly poultry and beef agricultural activities. This stream is a part of the Chesapeake Bay Small Agricultural Watershed Monitoring Program. 

Two hydrologic technicians work on installing a monitoring station at War Branch. NWIS data for this site can be found here.

The water quality monitoring equipment mounted in the creekbed at War Branch. 

War Branch is a creek in Rockingham County, Virginia. Its 11 square mile watershed includes mostly poultry and beef agricultural activities. This stream is a part of the Chesapeake Bay Small Agricultural Watershed Monitoring Program. 

The War Branch installation team pose for a group photo in front of the completed War Branch monitoring box. NWIS data for this site can be found here.

USGS scientists Hillary Dozier and Jimmy Webber work on installing a monitoring station at War Branch. NWIS data for this site can be found here.

Three USGS scientists work on installing underground cables for the monitoring station at War Branch. Cables and tubing that run from the monitoring box to the in-stream monitoring equipment are protected by pipes which are buried below-ground. 

War Branch is a creek in Rockingham County, Virginia. Its 11 square mile watershed includes mostly poultry and beef agricultural activities. This stream is a part of the Chesapeake Bay Small Agricultural Watershed Monitoring Program. 

Extent of each study watershed exhibiting characteristics of no incision (blue), moderate incision (orange), and severe incision (red) for the 2002 and 2018 time periods. Boxes A–D on stream networks correspond to photo examples shown below. Photo A taken November 2016, photos B and C taken October 2016, and photo D taken April 2022.

Continuous water-quality data are collected in streams like War Branch (pictured) using sondes, which are mounted to submerged in-stream structures like the one pictured here. These structures are constructed out of metal u-channel posts, and the data cables which connect to the sondes are protected by PVC pipes.

Two USGS hydrologic technicians take a break from collecting stream depth and velocity data at War Branch to smile up at the camera.

Hammer Creek is a creek in Lebanon County, Pennsylvania. Its 13 square mile watershed has a mixture of cropland and animal-raising activities.

Hammer Creek is a creek in Lebanon County, Pennsylvania. Its 13 square mile watershed has a mixture of cropland and animal-raising activities.

Hammer Creek is a creek in Lebanon County, Pennsylvania. Its 13 square mile watershed has a mixture of cropland and animal-raising activities.

Hammer Creek is a creek in Lebanon County, Pennsylvania. Its 13 square mile watershed has a mixture of cropland and animal-raising activities.

Little Conewago Creek is a creek in Lebanon County, Pennsylvania. Its 5 square mile watershed contains a mixture of animal and crop agricultural activities. 

Phosphate discharged from the Susquehanna River to the Chesapeake Bay could be derived, in part, by desorption from legacy sediments accumulated in impoundments along the lower reaches of the river owing to increasing pH of the river water over recent decades.

The stream gage at the Difficult Run Near Great Falls, VA monitoring station. This site is a part of the USGS Nontidal Network.

A water quality sampling bottle used to collect samples from S F Quantico Creek Near Independent Hill, VA. This site is part of the USGS nontidal network.

Water quality monitoring sondes installed at Difficult Run Near Great Falls, VA. Part of the USGS nontidal network.

Accotink Creek is an urban creek in the Potomac watershed. Like many urban streams, it suffers from bank erosion, leading to high suspended sediment loads, steep banks, and fallen trees.