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Community Water Quality Monitoring Results Rondout Creek 2012‐2016 Overview

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Community Water Quality Monitoring Results Rondout Creek 2012‐2016 Overview COMMUNITY WATER QUALITY MONITORING RESULTS RONDOUT CREEK 2012‐2016 OVERVIEW Riverkeeper and our Rondout Creek watershed partners have been testing the water for the fecal- indicator bacteria Enterococcus (“Entero”) since 2012. Sources of fecal contamination may include sewage infrastructure failures, sewer overflows, inadequate sewage treatment, septic system failures, agricultural runoff, urban runoff, and wildlife. Samples were collected monthly (approx. May to October) at 20 locations by Rochester and Wawarsing ECC members and local residents, and processed by Riverkeeper. A total of 587 samples have been analyzed since 2012. This water quality monitoring study is designed to learn about broad trends. The data can help inform choices about recreation in the creek, but cannot predict future water quality at any particular time and place. To see all the results visit www.riverkeeper.org/water-quality/citizen- data/rondout-creek. WATERSHED SNAPSHOT These results are for non‐tidal sites only. As measured against the EPA’s recommended geometric mean (a weighted average) criterion for As measured against the Environmental Protection safe swimming: Agency’s recommended Beach Action Value for safe swimming: EPA GM threshold Rondout Creek GM 30 128.6 66% cells/100 mL cells/100 mL of Rondout Creek samples failed. After rainy weather: 3 Best Sites 3 Worst Sites Wawarsing‐ Below Rosendale‐ AJ Rondout Res (#1) Snyder Field (#14) 87% Tillson‐ Wallkill River Wawarsing‐ of Rondout Creek samples failed. tributary (#17) Foordemoore (#7) Eddyville‐ Creek Rosendale Trestle Locks (#18) (#15) RIVERKEEPER COMMUNITY WATER QUALITY MONITORING PROGRAM 2016 RONDOUT CREEK DATA SUMMARY DAY‐TO‐DAY WATER QUALITY Riverkeeper assesses water quality using the EPA’s science-based 2012 Recreational Water Quality Criteria, which define recommended concentrations of Entero per 100 ml of water (“Entero count”) consistent with “primary contact recreation.” This includes swimming, bathing, water play by children and other activities where ingestion of water or full immersion of the body is likely. In this figure, the red bar shows the percentage of samples at each sampling site that have exceeded an Entero count of 60, the EPA-recommended Beach Action Value. Above this level, the EPA recommends public notification, and possible temporary beach closure. PERCENTAGE OF RONDOUT CREEK SAMPLES EXCEEDING EPA’S BEACH ACTION VALUE, 2012‐2016 1. WAWARSING‐ BELOW RONDOUT RES FISHING ACCESS 17% 83% 2. ELLENVILLE‐ BEER KILL TRIBUTARY 67% 33% 3. ELLENVILLE‐ SANDBURG CREEK TRIBUTARY 72% 28% 4. NAPANOCH‐ ROUTE 209 66% 34% 5. NAPANOCH‐ STATE PRISON 73% 27% 6. WAWARSING‐ PORT BEN ROAD 80% 20% 7. WAWARSING‐ FOORDEMOORE ROAD BRIDGE 90% 10% 8. KERHONKSON‐ ROUTE 44/55 BRIDGE 83% 17% 9. KERHONKSON‐ 42ND STREET BRIDGE 77% 23% 10. ACCORD‐ ROUTE 209 & RIVER STREET 73% 27% 11. ACCORD‐ ROCHESTER CREEK TRIBUTARY 70% 30% 12. ALLIGERVILLE‐ ROUTE 6 BRIDGE SWIMMING HOLE 57% 43% 13. HIGH FALLS SWIMMING HOLE 60% 40% 14. ROSENDALE‐ AJ SNYDER FIELD 77% 23% 15. ROSENDALE TRESTLE 73% 27% 16. TILLSON‐ NY THRUWAY CROSSING 57% 43% 17. TILLSON‐ WALLKILL RIVER TRIBUTARY 37% 63% 18. EDDYVILLE‐ CREEK LOCKS FISHING ACCESS 60% 40% 19. RONDOUT CREEK‐ EDDYVILLE ANCHORAGE 37% 63% 20. KINGSTON POINT BEACH 13% 87% % Beach Advisory (>60 cells/100 mL) % Acceptable (0‐60 cells/100 mL) WHAT DO THESE RESULTS MEAN? Comparing sample results to the BAV gives information about day‐to‐day water quality. At most locations, water quality was not suitable for swimming and other primary contact most of the times we sampled. However, there was variation among sites, with generally better water quality in the lower watershed. PAGE 2 RIVERKEEPER COMMUNITY WATER QUALITY MONITORING PROGRAM 2016 RONDOUT CREEK DATA SUMMARY WATER QUALITY OVER TIME The Geometric Mean (GM) describes the maximum allowable average Entero count to protect swimmers’ health, as measured over time at any given location. Water at a site with a high GM has a high average level of contamination. To avoid exposure to chronic contamination, the GM, a weighted average, should not exceed 30. EPA recommends weekly sampling. Over time, monthly sampling should reveal similar information. If a site’s GM exceeds 30, steps should be taken to reduce contamination. GEOMETRIC MEANS AT RONDOUT CREEK SAMPLING LOCATIONS, 2012‐2016 250 200 mL) ROUTE 209 ROCHESTER CREEK 150 BEER KILL (cells/100 AJ SNYDER FIELD NY THRUWAYXING PORT BEN RD CREEK LOCKS RD CREEK LOCKS STATE PRISON ROUTE 44/55 BR FOORDEMOORE RD BR Geomean 100 ROSENDALE TRESTLE 42ND STREETBR Count RTE 209 & RIVER ST SANDBURG CREEK 50 EDDYVILLE ANCHORAGE Entero BELOW RONDOUTRES KINGSTON POINT BEACH ROUTE 6 BR SWIM HOLE ROUTE6 BR SWIM HIGH FALLS SWIM HOLE HIGH FALLS SWIM WALLKILL R 0 45 40 35 30 25 20 15 10 5 0 ‐5 Miles Upstream from Mouth Main Stem Sites (Tidal Sites Filled In Blue) Tributary Sites EPA GM Criterion WHAT DO THESE RESULTS MEAN? The GM gives us information about long‐term water quality, and generally agrees with the day‐to‐ day trends shown by the BAV (page 2). Water coming from the Rondout Reservoir met the EPA’s recommended criterion for Enterococcus, as did water in the tidal portion of the Rondout Creek. This means that inputs within the watershed are degrading water quality. We observed contamination spikes through Napanoch/Wawarsing/Kerhonkson and in Rosendale. PAGE 3 RIVERKEEPER COMMUNITY WATER QUALITY MONITORING PROGRAM 2016 RONDOUT CREEK DATA SUMMARY HOW DOES STORMWATER AFFECT WATER QUALITY? In combined sewer systems, heavy rains trigger releases of untreated sewage directly into waterways. Even in systems where stormwater and wastewater are separated by design, leaks and cross-connections lead to stormwater infiltration into the wastewater system. The increased flows lead to infrastructure failures during storms. Stormwater runoff from streets, feedlots and farms, and areas with failed septic systems can also deliver fecal contamination to streams. This figure shows Entero GMs after dry (less than 0.25 inches of rain in the 4 days leading up to sampling) and rainy weather (0.25 inches or more). GEOMETRIC MEANS IN RONDOUT CREEK DURING WET AND DRY WEATHER, 2012‐2016 1. WAWARSING‐ BELOW RONDOUT RES FISHING ACCESS 1747 328 2. ELLENVILLE‐ BEER KILL TRIBUTARY 92 302 3. ELLENVILLE‐ SANDBURG CREEK TRIBUTARY 99 371 4. NAPANOCH‐ ROUTE 209 117 488 5. NAPANOCH‐ STATE PRISON 107 532 6. WAWARSING‐ PORT BEN ROAD 110 470 7. WAWARSING‐ FOORDEMOORE ROAD BRIDGE 134 383 8. KERHONKSON‐ ROUTE 44/55 BRIDGE 123 478 9. KERHONKSON‐ 42ND STREET BRIDGE 104 392 10. ACCORD‐ ROUTE 209 & RIVER STREET 101 753 11. ACCORD‐ ROCHESTER CREEK TRIBUTARY 113 447 12. ALLIGERVILLE‐ ROUTE 6 BRIDGE SWIMMING HOLE 85 795 13. HIGH FALLS SWIMMING HOLE 70 943 14. ROSENDALE‐ AJ SNYDER FIELD 143 587 15. ROSENDALE TRESTLE 138 885 16. TILLSON‐ NY THRUWAY CROSSING 66 544 17. TILLSON‐ WALLKILL RIVER TRIBUTARY 35 289 18. EDDYVILLE‐ CREEK LOCKS FISHING ACCESS 61 275 19. RONDOUT CREEK‐ EDDYVILLE ANCHORAGE 15 39 20. KINGSTON POINT BEACH 5 0 100 200 300 400 500 600 700 800 900 1000 Entero Count Geomean Wet Weather (0.25"+ rain) Dry Weather (<0.25" rain) EPA Geomean Criterion WHAT DO THESE RESULTS MEAN? Wet weather drastically increased Entero counts. Some sites had bigger rain‐related spikes than others. The dry weather results were well above the EPA’s recommended threshold at most sites, showing that stormwater runoff was not the only source of contamination in the Rondout Creek. PAGE 4 RIVERKEEPER COMMUNITY WATER QUALITY MONITORING PROGRAM 2016 RONDOUT CREEK DATA SUMMARY HOW DOES THE RONDOUT COMPARE WITH OTHER HUDSON TRIBUTARIES? Overall, our sampling data shows that water quality in tributaries is worse than in the Hudson River Estuary, and that tributaries are contamination sources to the Hudson. Average water quality varies among tributary watersheds. The figure below shows the Geometric Mean (weighted long-term average) of all sample results for all non-tidal sites within each watershed studied to date. Date ranges vary. GEOMETRIC MEANS OF ALL NON‐TIDAL SITES IN ALL TRIBUTARIES SAMPLED, 2010‐2016 UPPER HUDSON (ABOVE TROY DAM) 20.8 MOHAWK RIVER 24.0 CATSKILL CREEK 34.8 ROELIFF JANSEN KILL 24.8 SAWYER KILL 234.9 ESOPUS CREEK 36.1 SAW KILL 61.3 RONDOUT CREEK 128.6 WALLKILL RIVER 380.7 QUASSAICK CREEK 320.9 POCANTICO RIVER 347.2 SPARKILL CREEK 746.3 SAW MILL RIVER 362.6 0 200 400 600 800 Entero Count Geomean of Entero Counts EPA Geomean Criterion All samples were processed by Riverkeeper except as follows. Mohawk River and Upper Hudson samples processed by SUNY Cobleskill and Riverkeeper. Roeliff Jansen Kill and Saw Kill samples processed by Bard Water Lab. Quassaick Creek samples processed by EnviroTest. Pocantico River (2016), Sparkill Creek (2016), and Saw Mill River samples processed by The Sarah Lawrence College Center for the Urban River at Beczak. When comparing among all watersheds sampled, Rondout Creek ranks: 7th 7th 5th worst in terms of worst in terms of worst in terms of Overall GM Dry Weather GM Rain Response PAGE 5 RIVERKEEPER COMMUNITY WATER QUALITY MONITORING PROGRAM 2016 RONDOUT CREEK DATA SUMMARY WHAT DO THESE RESULTS MEAN? The Rondout Creek’s overall level of contamination (as measured by the weighted average of samples, the GM) falls in the middle of those that Riverkeeper and partners have measured. Yet, only one Rondout site met EPA’s GM criterion for water quality (page 3), and day‐to‐day results (page 2) also paint a poor picture. Where contamination is present in dry weather, sources should be identified; and overall, actions to reduce stormwater runoff should be a long‐term priority. COMMUNITY SCIENCE HAS IMPACT In 2015, Riverkeeper submitted community monitoring data to the NYS DEC, to ensure that it factored into the state’s water quality assessment and regulation. These data will help DEC determine where to target its routine monitoring of diverse water quality parameters, set to take place in the Hudson Valley in 2017-2018.
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