Old Saybrook & Old Lyme Watershed
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Estuary 13: Old Saybrook & Old Lyme Watershed Summary Impaired Segment Facts WATERSHED DESCRIPTION AND MAPS Impaired Segments, Classifications, and Areas The Old Saybrook/Old Lyme Estuary (Estuary 13) (square miles): covers an area of approximately 12,017 acres in southeastern Connecticut. These impaired segments Segment 1: LIS EB Inner - Connecticut River are located in the eastern portion of Long Island (mouth) (CT-E1_024-SB); SB; 3.28 Sound (LIS). The impaired segments in this Segment 2: LIS EB Inner - Black Hall River summary are located in the municipalities of Old (upper) (CT-E1_026-SB); SB; 0.04 Lyme and Old Saybrook, CT. Segment 3: LIS EB Inner - Duck River (CT- E1_027-SB); SB; 0.01 The Old Saybrook/Old Lyme Estuary includes three Segment 4: LIS EB Inner - Fourmile River (mouth) segments impaired for commercial shellfish (CT-E1_023); SA; 0.03 harvesting and nine segments impaired for direct Segment 5: LIS EB Inner - Oyster River Area (CT- shellfish harvesting due to elevated bacteria levels. These segments were assessed by Connecticut E1_032); SA; 0.10 Department of Energy and Environmental Segment 6: LIS EB Shore - Rocky Neck (Fourmile Protection (CT DEEP) and included in the CT 2012 Rvr) (CT-E2_017); SA; 0.53 303(d) list of impaired waterbodies. Some segments Segment 7: LIS EB Shore - Soundview Beach (CT- in the estuary are currently unassessed as of the E2_018); SA: 0.33 writing of this document. This does not mean there Segment 8: LIS EB Shore - Willard Bay (CT- are no potential issues on these segments, but E2_020); SA: 0.50 indicates a lack of current data to evaluate the Segment 9: LIS EB Shore - Indiantown Harbor segments as part of the assessment process. An (CT-E2_022); SA: 0.39 excerpt of the Integrated Water Quality Report is Segment 10: LIS EB Midshore - Old Lyme, CT included in Table 1 (CT DEEP, 2012). River (CT-E3_008); SA: 3.52 Impaired Segments Segment 11: LIS EB Midshore - Old Saybrook (CT-E3_010); SA: 4.41 Segment 1: LIS EB Inner - Connecticut River Segment 12: LIS EB Midshore - Old Saybrook, (mouth) (CT-E1_024-SB) is part of the inner estuary from the outlet at Griswold Point, US to I-95 Indian Harbor (CT-E3_011); SA: 5.64 crossing, and includes North and South Coves, Municipalities: Old Saybrook and Old Lyme lower Lieutenant River and waters around Great Island up to RR crossings. Segment 2: LIS EB Inner Designated Use Impairments: Shellfish - Black Hall River (upper) (CT-E1_026-SB) is part MS4 Applicable? Yes of the inner estuary from the Route 156 crossing to the saltwater limit at Mile Creek Road crossing. Applicable Season: Recreation Season (May 1 Segment 3: LIS EB Inner - Duck River (CT-E1_027- to September 30),Year Round for Shellfish Uses SB) is part of the inner estuary from RR crossing near Route 156 crossing, US to saltwater limit at Elm Street, Old Lyme. These impaired segments of the Old Saybrook/Old Lyme Estuary have a water quality classification of SB. Designated uses include commercial shellfish harvesting, recreation, habitat for marine fish and FINAL Estuary 13: Old Saybrook/Old Lyme Summary August 2014 other aquatic life and wildlife, industrial water supply, and navigation. Segments 1-3 of the estuary are impaired due to elevated bacteria concentrations, affecting the designated use of commercial shellfishing. Segment 4: LIS EB Inner - Fourmile River (mouth) (CT-E1_023) is part of the inner estuary from outlet at RR crossing, Western end of Rocky Neck State Park Beach, US to the saltwater limit at Route 156 crossing, Old Lyme. Segment 5: LIS EB Inner - Oyster River Area (CT-E1_032) is part of the inner estuary and includes the Oyster River, Plum Bank Creek, and Back River from mouths of Indian Harbor, US to the saltwater limits (Oyster River is to RR crossing above Route 1), Old Saybrook. Segment 6: LIS EB Shore - Rocky Neck (Fourmile Rvr) (CT-E2_017) extends from Hatchett Point to Seal Rock (Great Neck), including Rocky Neck State Park Beach, out approximately 1000 ft offshore. Segment 7: LIS EB Shore - Soundview Beach (CT-E2_018) extends from the SB/SA water quality boundary at Hawks Nest Beach area to Hatchett Point (including Soundview Beach), out approximately 1000 ft offshore. Segment 8: LIS EB Shore - Willard Bay (CT-E2_020) extends from Cornfield Point to the SB/SA water quality boundary at Lynde Point, out approximately 1000 ft offshore. Segment 9: LIS EB Shore - Indiantown Harbor (CT- E2_022) extends from Long Rock to Plum Bank Creek (includes the mouth of Oyster River and Back River, and Plum Bank Creek), out approximately 1000 ft offshore. Segment 10: LIS EB Midshore - Old Lyme, CT River (CT-E3_008) begins approximately 1,000 feet offshore beyond Segments 6 and 7 out to the 50- foot contour line (offshore of Connecticut River). Segment 11: LIS EB Midshore - Old Saybrook (CT- E3_010) begins approximately 1000 ft offshore Guardhouse Point, to SB/SA water quality boundary, Old Saybrook (Mouth of Connecticut River), out to 50 ft contour. Segment 12: LIS EB Midshore - Old Saybrook, Indian Harbor (CT-E3_011) begins approximately 1000 ft offshore Old Kelsey Point, to Guardhouse Point, Old Saybrook, (outer Indiantown Harbor and Plum Bank), out to 50 ft contour. These impaired segments (Segments 4 – 12) of the Old Saybrook/Old Lyme Estuary have a water quality classification of SA. Designated uses include shellfish harvesting for direct human consumption, recreation, habitat for marine fish and other aquatic life and wildlife, industrial water supply, and navigation. These segments of the estuary are impaired due to elevated bacteria concentrations, affecting the designated use of direct shellfishing. Table 1: Impaired segments in the Old Saybrook/Old Lyme Estuary from the Connecticut 2012 Integrated Water Quality Report Waterbody Waterbody Location ID Name Recreation Square Miles Square Direct Shellfish Direct Fish Consumption Marine Aquatic Life Aquatic Marine Commercial Shellfish Commercial Eastern portion of LIS, Inner LIS EB Estuary, Connecticut River from Inner - outlet at Griswold Point, US to I CT-E1_024- Connecticut 95 crossing (Includes North and 3.28 U U /// NOT SB River South Coves, lower Lieutenant NOT (mouth), River and waters around Great Old Lyme Island up to RR crossings), Old Lyme. Old Saybrook/Old Lyme Estuary TMDL Page 2 of 74 FINAL Estuary 13: Old Saybrook/Old Lyme Summary August 2014 Waterbody Waterbody Location ID Name Recreation Square Miles Square Direct Shellfish Direct Fish Consumption Marine Aquatic Life Aquatic Marine Commercial Shellfish Commercial LIS EB Eastern portion of LIS, Inner Inner - Estuary, Black Hall River from CT-E1_026- Black Hall Route 156 crossing, US to 0.04 U U FULL /// NOT SB River saltwater limit at Mile Creek (upper), Old Road crossing, Old Lyme. Lyme Eastern portion of LIS, Inner LIS EB Estuary, Duck River from RR CT-E1_027- Inner - Duck crossing near Route 156 0.01 U NOT FULL /// NOT SB River, Old crossing, US to saltwater limit at Lyme Elm Street, Old Lyme. LIS EB Eastern portion of LIS, Inner Inner - Estuary, Fourmile River from Fourmile outlet at RR crossing, Western CT-E1_023 0.03 U U FULL NOT /// River end of Rocky Neck State Park (mouth), Beach, US to saltwater limit at Old Lyme Route 156 crossing, Old Lyme. Eastern portion of LIS, Inner LIS EB Estuary, Oyster River, Plum Inner - Bank Creek, and Back River CT-E1_032 Oyster River from mouths on Indian Harbor, 0.10 U U FULL NOT /// Area, Old US to saltwater limits (Oyster Saybrook River is to RR crossing above Route 1), Old Saybrook. LIS EB Eastern portion of LIS from Shore - Hatchett Point to Seal Rock Rocky Neck CT-E2_017 (Great Neck) Includes Rocky 0.53 U FULL FULL NOT /// (Fourmile Neck State Park Beach, out Rvr), Old approximately 1000 ft offshore. Lyme Eastern portion of LIS from LIS EB SB/SA water quality boundary at Shore - Hawks Nest Beach area to CT-E2_018 Soundview 0.33 U FULL FULL NOT /// Hatchett Point (Includes Beach, Old Soundview Beach), out Lyme approximately 1000 ft offshore. LIS EB Eastern portion of LIS from Shore - Cornfield Point to SB/SA water CT-E2_020 Willard quality boundary at Lynde Point, 0.50 U U FULL NOT /// Bay, Old out approximately 1000 ft Saybrook offshore. (SB water) Old Saybrook/Old Lyme Estuary TMDL Page 3 of 74 FINAL Estuary 13: Old Saybrook/Old Lyme Summary August 2014 Waterbody Waterbody Location ID Name Recreation Square Miles Square Direct Shellfish Direct Fish Consumption Marine Aquatic Life Aquatic Marine Commercial Shellfish Commercial Eastern portion of LIS from LIS EB Long Rock to Plum Bank Creek Shore - (includes the mouth of Oyster CT-E2_022 Indiantown 0.39 U FULL FULL NOT /// River and Back River, and Plum Harbor, Old Bank Creek), out approximately Saybrook 1000 ft offshore. Eastern portion of LIS from SB/SA water quality boundary LIS EB near CT River mouth to Midshore - CT-E3_008 approximately 1000 ft offshore 3.52 FULL U FULL NOT /// Old Lyme, Hatchett Point, Old Lyme, out to CT River 50 ft contour (offshore of Connecticut River). Eastern portion of LIS from LIS EB approximately 1000 ft offshore Midshore - Guardhouse Point, to SB/SA CT-E3_010 4.41 FULL U FULL NOT /// Old water quality boundary, Old Saybrook Saybrook (Mouth of Connecticut River), out to 50 ft contour. LIS EB Eastern portion of LIS from Midshore - approximately 1000 ft offshore Old Old Kelsey Point, to Guardhouse CT-E3_011 5.64 FULL U FULL NOT /// Saybrook, Point, Old Saybrook, (outer Indian Indiantown Harbor and Plum Harbor Bank), out to 50 ft contour. Shaded cells indicate impaired segment addressed in this TMDL FULL = Designated Use Fully Supported NOT = Designated Use Not Supported U = Unassessed /// = Not Applicable to Segment Old Saybrook/Old Lyme Estuary TMDL Page 4 of 74 FINAL Estuary 13: Old Saybrook/Old Lyme Summary August 2014 Figure 1: GIS map featuring general information for impaired segments in the Old Saybrook/Old Lyme Estuary Shellfish Bed Classifications, Closures, and Lease Locations The Connecticut Department of Agriculture/Bureau of Aquaculture (CT DA/BA) is responsible for regulating shellfish harvesting (http://www.ct.gov/doag/cwp/view.asp?a=1369&Q=259170).