FY22 IMPACT REPORT OVERVIEW ENERGY & MATERIALS HEALTH & RESILIENCE WORK & PROSPERITY GOVERNANCE APPENDIX 33 Bristol Water Bristol Water keeps drinking water safe with the help of InfoWorks WS Pro Bristol Water has provided clean, fresh drinking water to its customers since 1846. Today, Bristol Water serves over 1 million people within Bristol, England. As part of Bristol Water’s routine monitoring of the Clevedon Well, a sample collected in January 2018 was reported to contain a single Cryptosporidium (Crypto) oocyst, which can cause illness if ingested. Upon hearing this news, Bristol Water notified the operations team immediately and Clevedon Treatment Works was shut down. Following the incident report, half of Clevedon Treated Water Tank was taken out of service and drained to reduce the treated water volume stored in the system. To help restore water quality as quickly ® ® as possible, the engineers used Autodesk InfoWorks WS Pro software to calculate how much more rapidly freshwater could move through the network and model solutions to the incident. In parallel, Crypto samples were taken. With the network purged and all samples returning negative results for Crypto, the Boil Water Notice was lifted after consultation and advice from Public Health England. Bristol Water received a 70% customer satisfaction score for its management of the incident. Learn more