Limerick Generating Station Units 1 & 2 License Renewal Project Environmental Report Response to Request for Additional Information (RAI) for the Review of LGS LRA ER, Dated February 28, 2012 Enclosure 2 Book 6 of 11 E2-1 1: Enclosure 2: Aquatic Ecology, item I RMC (RMC Environmental Services). 1988. Progress Report, Non-Radiological Environmental Monitoring for Limerick Generating Station 1987. Prepared for Philadelphia Electric Company. September. Exelon Response The requested document is provided. PROGRESS &'I =In i-Ra( ironment PROGRESS REPORT Non-Radiological Environmental Monitoring for Limerick Generating Station 1987 Preparedfor Philadelphia Electric Company by ITNCE-NNVIRONMENTAL SERVICES Pottstown, Pennsylvania SEPTEMBER 1988 TABLE OF CONTENTS Sect ion Executive Summary ... ....................................... 1.0 Introduction ............................................ 2.0 Delaware River ........................................... 3.0 Water Quality .. ....................................... 3.1 East Branch Perkiomen Creek .............................. 4.0 Water Quality .. ...................................... 4.1 Benthic Macroinvertebrates .......................... .2 Fish .. ................................................ 4.3 Perkiomen Creek ........................................... 5.0 Water Quality .. ........................................ 5.1 Fish .. ................................................ 5.2 Schuylkill River .. ......................................... 6.0 Water Quality .. ........................................ 6.1 Benthic Macroinvertebrates .......................... 6.2 Fish .. ................................................ 6.3 Asiatic Clam .. ............................................. 7.0 Literature Cited .. ......................................... 8.0 i LIST OF TABLES 2.0-1. Ecological and water quality studies conducted in relation to Limerick Generating Station by RMC Environmental Services. 2.0-2. List of progress reports which pertain to non- radiological environmental monitoring for Limerick Generating Station, 1970-1986. 3.1-1. Mean daily Delaware River discharge (ft 3/sec) measured at the Trenton US Geological Survey gage in 1987. 3.1-2. Mean monthly Delaware River discharge (ft 3/sec) measured at the Trenton US Geological Survey gage, 1971-1987. 3.1-3. Summary of Delaware River water quality at Station A11760, 20 March 1979 through 30 December 1987. 3.1-4. Summary of Delaware River water quality at Station A11760, 14 January 1987 through 30 December 1987. 3.1-5. Hew minimum values observed for water quality parameters measured in 1987 at Station A11760 on the Delaware River. 3.1-6. Hew maximum values observed for water quality parameters measured in 1987 at Station A11760 on the Delaware River. 4.1-1. Mean daily East Branch Perkiomen Creek dis- charge (ft 3/sec) measured at the Bucks Road US Geological Survey gage in 1987. 4.1-2. Mean monthly East Branch Perkiomen Creek dis- charge (ft 3/sec) measured at the Bucks Road US Geological Survey gage, 1983-1987. 4.1-3. Summary of East Branch Perkiomen Creek water quality at Station E32300, 30 March 1983 through 30 December 1987. 4.1-4. Summary of East Branch Perkiomen Creek water quality at Station E32300, 14 January 1987 through 30 December 1987. ii List of Tables (continued) 4.1-5. Hew minimum values observed for water quality parameters measured in 1987 at Station E32300 on the East Branch Perkiomen Creek. 4.1-6. New maximum values observed for water quality parameters measured in 1987 at Station E32300 on the East Branch Perkiomen Creek. 4.1-7. Summary of East Branch Perkiomen Creek water quality at Station E22880, 30 March 1983 through 30 December 1987. 4.1-8. Summary of East Branch Perkiomen Creek water quality at Station E22880, 14 January 1987 through 30 December 1987. 4.1-9. New minimum values observed for water quality parameters measured in 1987 at Station E22880 on the East Branch Perkiomen Creek. 4.1-10. New maximum values observed for water quality parameters measured in 1987 at Station E22880 on the East Branch Perkiomen Creek. 4.1-11. Summary of East Branch Perkiomen Creek water quality at Station E2800, 5 January 1983 through 30 December 1987. 4.1-12. Summary of East Branch Perkiomen Creek water quality at Station E2800, 14 January 1987 through 30 December 1987. 4.1-13. New minimum values observed for water quality parameters measured in 1987 at Station E2800 on the East Branch Perkiomen Creek. 4.1-14. New maximum values observed for water quality parameters measured in 1987 at Station E2800 on the East Branch Perkiomen Creek. 4.2-1. Macroinvertebrate taxa collected in the East Branch Perkiomen Creek during 1987. 4.2-2. Total macroinvertebrate standing crop (mean number/m 2 ) measured in the East Branch Perkiomen Creek during 1987. iii List of Tables (continued) 4.2-3. Macroinvertebrate standing crop (mean number/m 2 ) measured in East Branch Perkiomen Creek during 1987. 4.2-4. Percent composition (by number) of macro- invertebrates collected in the East Branch Ferkiomen Creek during 1987. 4.2-5. Macroinvertebrate standing crop (mean number/mz) and percent composition of important taxa (>2%) at E12500 in the East Branch Perkiomen Creek, 1983-1987. 4.2-6. Macroinvertebrate standing crop (mean number/mz) and percent composition of important taxa (>2%) at E23000 in the East Branch Perkiomen Creek, 1983-1987. 4.2-7. Macroinvertebrate standing crop (mean number/mz) and percent composition of important taxa (>2%) at E26700 in the East Branch Perkiomen Creek, 1983-1987. 4.2-8. Macroinvertebrate standing crop (mean number/m 2 ) and percent composition of important taxa (>2%) at E29910 in the East Branch Perkiomen Creek, 1983-1987. 4.2-9. Macroinvertebrate standing crop (mean number/mz) and percent composition of important taxa (>2M) at E36725 in the East Branch Perkiomen Creek, 1983-1987. 4.2-10. Macroinvertebrate standing crop (mean number/m 2 ) and percent composition of important taxa (>2%) at E36985 in the East Branch Perkiomen Creek, 1985-1987. 4.3-1. Fishes collected from East Branch Perkiomen Creek since 1970, their status, and relative abundance by sampling method in 1957. 4.3-2. Total catch and relative abundance of fishes collected by seine from the East Branch Perkiomen Creek by station in 1987. iv List of Tables (continued) 4.3-3. Total catch and relative abundance of fishes collected by seine from Morris Run and Perkiomen Creek in 1987. 4.3-4. Density (number/hectare) of fishes estimated in spring and fall at seven stations in East Branch Perkiomen Creek in 1987. 5.1-1. Mean daily Perkiomen Creek discharge (ft 3/sec) measured at the Graterford US Geological Survey gage in 1987. 5.1-2. Mean monthly Perkiomen Creek discharge (ft 3/sec) measured at the Graterford US Geological Survey gage, 1970-1987. 5.1-3. Summary of Perkiomen Creek water quality at Station P18700, 20 March 1979 through 30 December 1987. 5.1-4. Summary of Perkiomen Creek water quality at Station F14390, 20 March 1979 through 30 December 1987. 5.1-5. Summary of Perkiomen Creek water quality at Station P18700, 14 January 1987 through 30 December 1987. 5.1-6. Summary of Perkiomen Creek water quality at Station P14390, 14 January 1987 through 30 December 1987. 5.1-7. New minimum values observed for water quality parameters measured in 1987 at Station P18700 on the Perkiomen Creek. 5.1-8. New maximum values observed for water quality parameters measured in 1987 at station P18700 on the Perkiomen Creek. 5.1-9. New minimum values observed for water quality parameters measured in 1987 at station P14390 on the Perkiomen Creek. 5.1-10. New maximum values observed for water quality parameters measured in 1987 at station P14390 on the Perkiomen Creek. 5.2-1. Summary of the Perkiomen Creek electrofishing stations and months 1981-1987. v List of Tables (continued) 5.2-2. Annual relative abundance of target fishes from the Perkiomen Creek electrofished in 1987 (+ = Less than 0.1%, CPUE = fish per hour). 5.2-3. Monthly species composition and relative abundance of target fishes electrofished from the Perkiomen Creek at P14030 in 1987 (+ = Less than 0.1%). 5.2-4. Monthly species composition and relative abundance of target fishes electrofished from the Perkiomen Creek at P14170 in 1987 (+ = Less than 0.1%). 5.2-5. Monthly species composition and relative abundance of target fishes electrofished from the Perkiomen Creek at P14540 in 1987 (+ = Less than 0.1%). 5.2-6. Monthly species composition and relative abundance of target fishes electrofished from the Perkiomen Creek at P20035 in 1987 (+ = Less than 0.1%). 6.1-1. Mean daily Schuylkill River discharge (ft 3/sec) measured at the Pottstown US Geological Survey gage in 1987. 3 6.1-2. Mean monthly Schuylkill River discharge (ft /sec) measured at the Pottstown US Geological Survey gage, 1970-1987. 6.1-3. Daily Schuylkill River temperature (C) measured at the Pottstown Water Treatment Plant in 1987. 6.1-4. Mean monthly Schuylkill River temperature (C) measured at the Pottstown Water Treatment Plant, 1970-1987. 6.1-5. Summary of Schuylkill River water quality at station 577660, 20 March 1979 through 30 December 1987. 6.1-6. Summary of Schuylkill River water quality at station S77660, 14 January 1987 through 30 December 1987. vi List of Tables (continued) 6.1-7. New minimum values observed for water quality parameters measured in 1987 at station 577660 on the Schuylkill River. 6.1-8. New maximum values observed for water quality parameters measured in 1987 at station 577660 on the Schuylkill River. 6.1-9. Summary of Schuylkill River water quality at station 577140, 20 March 1979 through 30 December 1987. 6.1-10. Summary of Schuylkill River water quality at station 577140, 14 January 1987 through 30 December 1987. 6.1-11. New minimum values observed for water quality parameters in 1987 at station 577140 on the Schuylkill River. 6.1-12. Hew maximum values observed for water quality parameters measured in 1987 at station S77140 on the Schuylkill River. 6.2-1. Macroinvertebrate taxa collected in the Schuylkill River during 1987. 6.2-2. Total macroinvertebrate standing crop (mean number/mz) measured in the Schuylkill River during 1987. 6.2-3.