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Table 6-2. Summary of Communication Requirements for SSOs DEFINITIONS [see Section A on page 5 of Order 2006-0003-DWQ, for Sanitary Sewer CATEGORIES Overflow (SSO) definition] Discharges of untreated or partially treated wastewater of any volume resulting from an enrollee's sanitary sewer system failure or flow condition that: CATEGORY • Reach surface water and/or reach a drainage channel tributary to a surface water; or • Reach a Municipal Separate Storm Sewer System (MS4) and are not fully captured and returned to the sanitary sewer system or not otherwise captured and disposed of properly. Any volume of wastewater not recovered from the MS4 is considered to have reached surface water unless the storm drain system discharges to a dedicated storm water or groundwater infiltration basin (e.g., infiltration pit, percolation pond). puP -qv- CATEGORY 2 Discharges of untreated or partially treated wastewater of 1,000 gallons or greater resulting from an enrollee's sanitary sewer system failure or flow condition that do not reach surface water, a drainage channel, or a MS4 unless the entire SSO discharged to the storm drain system is fully recovered and disposed of properly. CATEGORY 3 All other discharges of untreated or partially treated wastewater resulting from an enrollee's sanitary sewer system failure or flow condition. PRIVATE LATERAL Discharges of untreated or partially treated wastewater resulting from blockages or SEWAGE DISCHARGE other problems within a privately owned sewer lateral connected to the enrollee's (PLSD) sanitary sewer system or from other private sewer assets. PLSDs that the enrollee becomes aware of may be voluntarily reported to the California Integrated Water Quality System (CIWQS) Online SSO Database. a. 31 ' Page