Why Change? Current Pretreatment Program Proposed Changes. Categorical General Permit Miscellaneous General Permit

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2 Why Change? Current Pretreatment Program Proposed Changes Categorical General Permit Miscellaneous General Permit

3 Increasing federally-regulated universe Increased EPA requirements Greater focus on environmental priorities Declining staffing levels: FTEs FTEs FTEs

4 Individual Permits 149 Significant Industrial Users ( SIU or Pretreatment ) Permits 28 Non-SIU Permits

5 General Permits Categorical/Metal Finishing, 21 SIUs, to be reissued Miscellaneous, 61 regs. (22 SIUs), to be reissued Groundwater Remediation, 459 regs., to be reissued Low-Flow Water Treatment, no-reg, expires March 2018 Food Processing, 32 regs., expires February 2018 Printing & Publishing, 151 regs., expires February 2018 Water Treatment, et. al., expires March 2018 Swimming Pool, expires July 2019 Vehicle Maintenance, 1368 regs., expires January 2021

6 Based on 40 CFR 403.3(v), a Significant Industrial User essentially means: All Industrial Users subject to Categorical Pretreatment Standards under 40 CFR and 40 CFR Chapter I, subchapter N; and

7 and Any Industrial User discharging an average of 25,000 gpd or more of process wastewater to the POTW; contributes a process wastestream which makes up 5% or more of average dry weather hydraulic or organic capacity of the POTW; or is designated an SIU on the basis there is reasonable potential for adversely affecting the POTW s operation or violating any Pretreatment Standard

8 DEEP to continue regulating all SIUs Individual Permits Categorical Industrial User GP & SIUs from MISC GP merged to become SIU GP Non-SIUs covered by MISC GP WPCAs to have primary role regulating non-sius MISC General Permit to be reissued/modified DEEP seeks comment/input from WPCAs

9 Miscellaneous General Permit Group I Discharges Air compressor condensate & blowdown Boiler blowdown Contact cooling & heating water* Cutting and grinding wastewater* Non-destruct testing rinsewater* Printing and photo processing wastewater* Tumbling and cleaning wastewater* Water treatment wastewater* Other processing wastewater* *Process Wastewaters

10 Miscellaneous General Permit Group II Discharges Non-contact cooling water Hydrostatic pressure testing wastewater Commercial laundry wastewater* Food processing wastewater* Reverse osmosis reject water* *Process Wastewaters

11 Miscellaneous General Permit Group III Discharges Building maintenance wastewater Fire suppression testing wastewater Swimming pool wastewaters Potable water system maintenance/sampling wastewaters

12 Miscellaneous General Permit Group IV Discharges Discharges of Group I, II, or III which are hauled by a Connecticut licensed transporter to a POTW that has been approved by the commissioner to accept over-the-road wastewater.

13 Miscellaneous General Permit Other Proposed Changes Registration submitted to WPCA, not to DEEP Registration would still require P.E./CHMM sign-off Authorization based on WPCA approval Comply with more protective of either WPCA ordinance or MISC GP WPCA receives monitoring/reporting information, not DEEP WPCA has primary role for assuring compliance

14 Public Notice Draft SIU & MISC GPs Fall day Comment Period Opportunity for Continued Stakeholder Input Final Decision Issuance

15 QUESTIONS?

16 Oswald Ozzie Inglese Jr. Director Water Permitting & Enforcement Division CT DEEP