Brighton ChaMP* for Water Protecting our precious groundwater in the South Downs Contact: Aimee Felus, ChaMP Project Manager E:
[email protected] T: 01730 819282 M: 07887 415149 Wild Park Rainscape Proposal Project Summary and Supporting Statements Current drainage system for Strategic Road Network (SRN) in project location: Surface water drainage discharges from the A27 into a balancing pond at Woollards Way, Brighton BN1 9BP. Water and any associated contaminants then pass into a traditional piped system adjacent to Lewes Rd, prior to ultimately discharging to a series of soakaways in Wild Park, Lewes Rd, Moulsecoomb, Brighton, BN1 9JR. The site lies in a Source Protection Zone 1 and 2 (SPZ1 and 2) for drinking water. A recent PhD conducted at the University of Brighton has demonstrated presence of a range of potential contaminants in the balancing pond (heavy metals and hydrocarbons) with zinc and benzo (a) pyrene being of particular concern. Figure 1: Location of proposed projects - Woollards Way, Brighton, BN1 9BP (TQ 34107 08324), and Wild Park, Lewes Rd, Moulsecoomb, Brighton, BN1 9JR (TQ 33187 07875) *Chalk Management Partnership Balancing pond at Woollards Way Series of soakaways in Wild Park Figure 2: Location of balancing pond and soakaways and SPZ1 and 2 (shown in red and green respectively) Figure 3: Balancing pond at Woollards Way shows evidence of contamination with hydrocarbons and heavy metals Figure 4: Balancing pond with water Figure 5: Soakaway in Wild Park with contaminated silts and black water Summary of Proposed Project: Proposals are to modify the existing system and create a Sustainable Drainage System (SuDS), or ‘Rainscape’, that prevents pollution of groundwater.