Class A recycled water must be oxidized, A recycled water may be used A. (delete filtered and disinfected. for: this row if Before disinfection, unless otherwise Class B, Class C, Class D, and it does not approved in writing by DEQ. nondisinfected uses. apply) (include Irrigation for any agricultural or highlighted language only for legacy horticultural use. permittees with facilities in which the Landscape irrigation of filtration process comes after the playgrounds, school yards, residential disinfection process. Delete from all turbidity may not exceed: landscapes, or other landscapes other permits.) 2 NTUs within a 24-hour period. accessible to the public. 5 NTUs more than five percent of the Commercial car washing or fountains time within a 24-hour period. when the water is not intended for 10 NTUs at any time. human consumption. supply source for non restricted After disinfection, total coliform may not recreational impoundments. exceed: Artificial groundwater recharge by A median of 2.2 organisms per 100 surface infiltration methods or by mL based on daily sampling over the subsurface injection in accordance last 7 days that analyses have been with OAR Chapter 340, Division 44. completed. This clause should not be included 23 organisms per 100 mL in any unless the application has specifically single sample. requested artificial groundwater recharge as a beneficial use. Artificial groundwater recharge requires a groundwater monitoring plan, working with WRD, and it may require a UIC permit. It is described in the Recycled Water IMD at B. Class B recycled water must be oxidized Class B recycled water may be used (delete this and disinfected. Total coliform may not for: row if it does exceed: Class C, Class D, and nondisinfected not apply) A median of 2.2 organisms per 100 uses. mL, based on the last 7 days that Stand-alone fire suppression systems analyses have been completed. in commercial and residential 23 total coliform organisms per 100 building, non-residential toilet or mL in any single sample. urinal flushing, or floor drain trap priming. Water supply source for restricted recreational impoundments.
A. (delete this row if it does not apply) Class A recycled water must be oxidized, filtered and disinfected. Before disinfection, unless otherwise approved in writing by DEQ. (include highlighted language only for legacy permittees with facilities in which the filtration process comes after the disinfection process. Delete from all other permits.) turbidity may not exceed: 2 NTUs within a 24-hour period. 5 NTUs more than five percent of the time within a 24-hour period. 10 NTUs at any time. After disinfection, total coliform may not exceed: A median of 2.2 organisms per 100 mL based on daily sampling over the last 7 days that analyses have been completed. 23 organisms per 100 mL in any single sample. A recycled water may be used for: Class B, Class C, Class D, and nondisinfected uses. Irrigation for any agricultural or horticultural use. Landscape irrigation of playgrounds, school yards, residential landscapes, or other landscapes accessible to the public. Commercial car washing or fountains when the water is not intended for human consumption. supply source for non restricted recreational impoundments. Artificial groundwater recharge by surface infiltration methods or by subsurface injection in accordance with OAR Chapter 340, Division 44. This clause should not be included unless the application has specifically requested artificial groundwater recharge as a beneficial use. Artificial groundwater recharge requires a groundwater monitoring plan, working with WRD, and it may require a UIC permit. It is described in the Recycled Water IMD at B. (delete this row if it does not apply) Class B recycled water must be oxidized and disinfected. Total coliform may not exceed: A median of 2.2 organisms per 100 mL, based on the last 7 days that analyses have been completed. 23 total coliform organisms per 100 mL in any single sample. Class B recycled water may be used for: Class C, Class D, and nondisinfected uses. Stand-alone fire suppression systems in commercial and residential building, non-residential toilet or urinal flushing, or floor drain trap priming. Water supply source for restricted recreational impoundments.
NPDES-PERTMinor.docx