Gaderbrook
London, Brent, United Kingdom
Neil has been sampling water quality at this site. Concentrations of ammonia and phosphate with the Hanna Checkers are quite high in dry spells.
Location created by
Philly Nicholls
- Group: Thames21 : Brent Catchment Water Quality Working Group
- Site ID: GB106039022940_GB1
- Lat: 51.5788803
- Lng: -0.279057
- Waterbody Type: Stream
- Timezone: Europe/London
Latest photos
water entering further upstream from outflow showed no surface foam or film. Surface film and foam has been a usual observation on previous test visits.
The location (Fryent Country Park) is very wet in winter. Surface rain water flows down from the higher ground above the stream and should dilute polluted contribution from nearby roads and built up areas in the catchment. Readings are currently much lower than in summer or early autumn.
water coloured orange brown but transparent.
turbidity estimated with setchi tube
Phosphate reading at oufall 1.51mg/l taken 12.45pm
Pollution incident reported to Environment Agencyh
outfall source 40m upstream phosphate reading 1.51
site located 40m from outfall inflow upstream. phosphate reading at outfall 1.00mg/l. Dilution effect? to be investigated.
stream has long standing reputation for misconnections locally.
hanna checker, phosphate LR limit exceeded (flashing)
Hanna checker. phosphate reading steady
Hanna checker