developer policy manual - Grand Strand Water and Sewer Authority
developer policy manual - Grand Strand Water and Sewer Authority
developer policy manual - Grand Strand Water and Sewer Authority
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APPENDIX 11<br />
BACKFLOW PREVENTION REQUIREMENTS<br />
Policy:<br />
1. Public <strong>Water</strong> Systems<br />
All approved public water systems interconnected to GSWSA shall have a<br />
common gate valve <strong>and</strong>/or check valve between the systems.<br />
2. Commercial Customers<br />
All new commercial irrigation customers shall have an approved reduced pressure<br />
backflow preventer assembly. Maintenance <strong>and</strong> annual certification of the<br />
reduced pressure backflow preventer shall be the responsibility of the customer.<br />
Customers may for a monthly fee as outlined in the approved rate resolution<br />
contract GSWSA to maintain <strong>and</strong> annually inspect cross-connection device.<br />
<strong>Water</strong> service to a commercial customer less than 2” will have a dual check or a<br />
cross-connection device installed (double check or reduced pressure backflow<br />
presenter) based on the Letter of Intent <strong>and</strong> the degree of hazard.<br />
<strong>Water</strong> service to a commercial customer greater than 2” will have a crossconnection<br />
device installed (double check or reduced pressure backflow<br />
presenter) based on the Letter of Intent <strong>and</strong> degree of hazard.<br />
Customers may for a monthly fee as outlined in the approved rate resolution<br />
contract GSWSA to maintain <strong>and</strong> annually inspect cross-connection device.<br />
NOTE: The customer shall own <strong>and</strong> maintain the cross connection device.<br />
3. Fire line systems shall have a detector double check valve assembly regardless of<br />
size unless the degree of hazard requires a reduced pressure backflow preventer.<br />
Cross-connection control devices for fire suppression systems will be installed by<br />
GSWSA.<br />
4. The cost of providing <strong>and</strong> installing any cross-connection control devices shall be<br />
paid by the customer. The <strong>Authority</strong> shall maintain an up-to-date service charge<br />
schedule for installing cross-connection control devices in conjunction with the<br />
approved rate schedule.<br />
5. The GSWSA will maintain a current listing of all double check valve assemblies<br />
<strong>and</strong> RPBP device locations.<br />
<strong>Gr<strong>and</strong></strong> <strong>Str<strong>and</strong></strong> <strong>Water</strong> <strong>and</strong> <strong>Sewer</strong> <strong>Authority</strong> July 2009 Appendices<br />
Developer Policy Manual Page 71
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