Water Quality Sampling Results

Chichester Harbour Conservancy, in conjunction with Chichester District Council monitor the quality of the water within the Chichester Harbour. Samples from 12 locations in the harbour are collected and tested twice a month during the summer months and monthly throughout the winter.

Although there are no regulatory standards for this area of water, the EU Bathing Water Standards are used as a guide. Chichester Harbour is not a designated bathing water site, however the test results can be viewed as an indicator of potential pollution levels at the time of testing.

Historical results are available on the Chichester District Council website.

Current water sampling results 30.10.2023

The recent heavy rainfall has had an effect on the water quality in Chichester Harbour.  Chichester Harbour Conservancy, in conjunction with Chichester District Council regularly monitors levels of e-coli and intestinal enterococci at 12 sites across the harbour. 

The levels are compared with EU Bathing Water Standards.  Our latest test results, from samples taken on 30 October showed high levels of both bacteria, exceeding EU bathing standard levels.

_Sample Date: 30th October 2023
Sample SiteTimeE.Coli (/100ml)Enterococci (/100ml)Compliant with minimum requirements of the EU BWD? (E.Coli ≤500cfu and Intestinal Enterococci ≤185cfu)
Nutbourne C14.5527040YES
Cobnor Dinghy Park Slipway14.451200370NO
Bosham Quay Quayside14.5533001200NO
Dell Quay Quayside14.10120001900NO
Northney Beacon14.1724050YES
Furzefield Creek Ent15.1532070YES
North of Dell Quay Mid-channel, near WWTW discharge point14.00780940NO
CM Slipway14.20610140NO
Deep End Mid-channel near Cobnor Point15.05900220NO
Emsworth Jetty14.03830490NO
East Head Mid-channel14.38400100YES
CM Beacon14.25560140NO
Time of nearest High TideWind SpeedWind DirectionWeatherCloud Cover