Case Study = Enfield = River Restoration + Conservation

Question 1

What does river restoration and conservation aim (4)

Answer 1

Restore river system
Reduce flood risk + pollution + create new habitats

Question 2

Enfield context (2)

Answer 2

Had regular floods - 2006 + 07 + 08
Heavily urbanised

Question 3

Problems with en field before restoration (3+)

Answer 3

Urbanisation = increase SR + channel flow = 9000 homes in Enfield at risk of flood
Increased pollution from SR of roads = oil
Water pollution from domestic sources - 10% homes have wastewater pipes

Question 4

How did project use SUDS (3++)

Answer 4

Vegetated trenches = absorb runoff
Rainwater planters in schools = collect rain
Wetlands constructed v improve water quality e.g reed beds around salmon brook = reduce SR + filter water before goes in river

Question 5

Groups involved

Answer 5

Defra + Thames water provide funding

Question 6

How Defra

Answer 6

2012 provided £340,000 to construct suds

Question 7

How Thames water (2)

Answer 7

Offered education sessions in local schools = increase engagement
In 2015 = 1000 students involved in litter picking + wildlife monitoring

Question 8

Local residents reaction (2)

Answer 8

Very positive
Monitor water quality + litter pickups

Question 9

Successes (3+)

Answer 9

Flood risk reduced - jan2013 and dec2014 high rainfall but not sig flooding
Suds reduced ammmonia in salmon Brook by 67% and nitrogen levels by 43%
Pop of eels has increased

Question 10

Failures

Answer 10

Pollution + litter still an issue