Skip to main content


Title: An investigation to determine possible causes of poor water quality downstream of Chagford STW (WSTW6046B)
Author: P. Rose
Document Type: Monograph
Annotation: EA additional title info: Devon Area internal report September 1996
The River Teign rises at NGR SX 6144 8398 as the North Teign River and flows north-east where it is joined by the South Teign River 2 km west of Chagford (SX 6827 8766). The river then flows east for approximately 20 km where it is joined by the Sowton Brook 1 km north of Doddiscombsleigh, then flows south towards the estuary and is joined by both the Breadon Brook (SX 8439 8167) and the Bramble Brook (SX 8491 8124) 1.5 km north-east of Hennock. Below these tributaries the River Teign is joined by the River Bovey 1.5 km south of Chudleigh Knighton and flows for a further 4 km before discharging to the sea some 50.8 km from source. The GQA site WSTW6046B attained a grade B (water chemistry) for 1995. This did not comply with the Environmental Quality Standards (EQS's) for the previously assigned River Quality Objective (RQO) of 1A (National Water Council classification previously used by the National Rivers Authority). The current RQO target for this site using the River Ecosystem Use (RE) Classification is class 2, with a long term target of RE class 1. The routine monitoring data for 1995 show the river water quality at WSTW6046B attained an optimistic class of RE1 and a face value class of RE2. This investigation will determine the probable cause of the marginal BOD and total ammonia failures.
Publisher: Environment Agency
Publication Date: 1996
Publication Place: [Exeter]
Subject Keywords: RiversWater qualityPollution surveysPollutant loadRiver ecosystem classificationTotal ammoniacal nitrogenBiological surveysEffluents
Geographic Keywords: TeignDevonSouth Devon catchment
Extent: n.p. [30]
Total file downloads: 316

Download PDF    Display PDF in separate tab