AN ASSESSMENT OF WATER QUALITY IN LOWER COEYMANS CREEK USING AQUATIC MACROINVERTEBRATE POPULATIONS

January 24, 2020

For: Hudson River Sloop Clearwater, Inc. 724 Wolcott Ave

Beacon, NY

By:

Jeremy Dietrich IA Environmental 600 Wolverine Way Scotts Valley, CA 95066

TABLE OF CONTENTS

SECTION PAGE

INTRODUCTION: 1

METHODS: 1

RESULTS: 4

DISCUSSION: 6

CONCLUSIONS: 8

REFERENCES: 9

REPORT TABLES: 10 -13

REPORT FIGURES 14- 22

APPENDIX: Photographs of collection locations 23-25

Introduction

Coeymans creek is a third order stream draining the western slope of the Hudson River in Albany County, New York State. The stream travels southeast approximately 19.5 miles from its headwaters near Clarksville to its confluence with the Hudson River proper near the towns of Ravena and Coeymans. The stream is classified as a C(TS) stream by the New York State Department of Environmental Conservation (DEC). A class C stream is designated for waters supporting fisheries and suitable for non-contact activities, and TS, short for “trout spawning,” indicates protections are in place for the propagation of trout. A landscape cover of forest, industrial, and residential predominate the lower reach of Coeymans. The characteristics of Coeymans creek and its watershed have been well documented in other studies, particularly The Onesquethaw-Coeymans Watershed Study (OCWS) prepared by the Onesquethaw- Coeymans Watershed Council and Capital District Regional Planning Commission in 2008. The DEC’s Stream Biomonitoring unit sampled aquatic invertebrates in the lower reach of Coeymans in 1987, 1998, 2002, and 2013 at State Route 144; and in 1987, 1988, and 1998 at Old Ravena Rd. The DEC’s determination of water quality designation based on macroinvertebrate studies concluded a designation of slightly impacted at Old Ravena Rd and a combination of slightly and moderately impacted at SR-144. A document report by DEC’s Stream Biomonitoring Unit titled 30 Year Trends in Water Quality of Rivers and Streams in New York State Based on Macroinvertebrate Data, 1972-2002 (Bode et al., 2004) described Coeymans Creek as follows:

“Coeymans Creek: Water quality in Coeymans Creek from Bethlehem Heights to Coeymans is assessed as slightly impacted, based on macroinvertebrate sampling in 1998. Probable stressors are nonpoint source nutrient enrichment, municipal/industrial inputs, and siltation.”

The goal of this study was to assess aquatic macroinvertebrate populations within the lower reach of Coeymans creek between Old Ravena Rd and State Route 144. This segment of Coeymans flows through a wildlife management area and cement plant in its upper to middle reaches and an industrial park in its lower reach. A focus was to determine if industrial and commercial land use activities surrounding the lower reach of Coeymans Creek are impacting the creek by harming invertebrate populations in that vicinity.

Methods

Aquatic macroinvertebrates were collected from three locations within the lower reach of Coeymans Creek: (1) At the first riffle/run downstream of the bridge at Old Ravena Rd, (2) within the Coeymans Wildlife Management Area (WMA) upstream of the Industrial Park zone, and (3) at the riffle upstream of the bridge at State Route 144, and immediately downstream of

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the Industrial Park zone. A map illustrating the collection sites can be found in Figure 1, and detailed coordinate locations and sample collection timing can be found in Table 1.

Table 1: Coeymans Creek 2019 aquatic macroinvertebrate survey location and collection information. Location Date Time Easting Northing Sample Water (UTM, 18N) (UTM, 18N) Type Temp. (°F) Ravena Rd 07 June 2019 9:30 597942 4707435 Kick 59 Coeymans WMA 07 June 2019 14:45 598335 4706169 Kick 56 Route 144 07 June 2019 12:30 599114 4703598 Kick 58

Field Sampling At each location, a traveling kick sample was performed in riffle/run habitats to capture aquatic macroinvertebrates. Three replicate samples were taken at transects perpendicular to stream flow. The kick sample method captures benthic organisms by disturbing bottom sediments and catching the dislodged organisms in a D-framed net with a mesh size of 0.5mm. Kick samples are timed at a 5-minute duration so that capture effort is standardized. Following the instream kick, sample contents were rinsed over a 0.5mm brass sieve to eliminate any fine silt while large debris was rinsed of any organisms and removed from the sample. The samples were then placed in 1L containers, and preserved with 95% ethanol. Following the kick sample, site characteristics such as substrate composition, habitat attributes, water clarity, aquatic vegetation presence, algal/biofilm cover, tree canopy cover, and observations of animals or human impacts were qualitatively evaluated. Additionally, a hand-drawn schematic of the site was illustrated to define the exact sampling transects as they relate to local landmarks such as riparian trees or stream channel profile.

Laboratory Analyses Raw sample contents were placed into and equitably distributed within a large sorting pan (40cm L x 30cm W x 6cm H) with 20 equally spaced numbered grids scribed on the bottom (see photo at right). A series of random numbers, between 1 - 20, were generated for use in subsampling. Following procedures within New York State Department of Environmental Conservation’s Standard Operating Procedure for Biological Monitoring of Surface Waters in New York State (Duffy, 2018), a robust subsample of 250 invertebrates was picked from each sample. Following the random number grid assignments,

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all organisms within a single grid were picked and enumerated before moving on to the next grid. This process was repeated until at least 250 organisms were captured or the entire sample was picked. Once subsamples were obtained, aquatic invertebrates were sorted into taxonomic orders, then identified and enumerated to the lowest practical taxonomic level, often to genus. Identifications were made using a 45x dissecting microscope (Fisher Scientific Stereomaster). Organisms were then archived in ordinal-level vials and preserved in 70% Ethanol.

Biotic Criteria Parameter Calculation and Impairment Determination For each site, parameter values for the following metrics were calculated: Taxa Richness (SPP), Hilsenhoff Biotic Index (HBI), Ephemeroptera- Plecoptera-Trichoptera (EPT) Richness, and Percent Model Affinity (PMA). The figure at right depicts the metric thresholds for assignment of impact designations. Taxa Richness is the total number of species or taxa found in the sample. Higher taxa richness values are mostly associated with clean-water conditions. The Hilsenhoff Biotic Index is calculated by multiplying the number of individuals of each species by its assigned tolerance value (from Table 17.11 in Smith 2014), summing these products, and dividing by the total number of individuals. On a 0-10 scale, tolerance values range from intolerant (0) to tolerant (10). EPT value denotes the total number of species of mayflies (Ephemeroptera), stoneflies (Plecoptera), and caddisflies (Trichoptera) in the subsample. These taxa are considered clean-water organisms, and their presence is correlated with good water quality. Percent Model Affinity is a measure of similarity to a model non-impacted community based on percent abundance in 7 major taxonomic groups: 40% mayflies, 5% stoneflies, 10% beetles, 10% caddisflies, 20% midges, 5% aquatic worms, and 10% other taxa. Overall assessment of water quality at a site is achieved by combining the ranking of the above index values to calculate the Biological Assessment Profile (BAP). The BAP converts the collective indices to a common 0-10 scale, where 0 indicates very poor water quality (severely impacted) and 10 being very good water quality (non-impacted). The BAP numeric scale (0-10) assigns a qualitative stream water quality designation among four categories: (1) Non-Impacted [10-7.5]: very good water quality, (2) Semi-Impacted [7.5-5]: good water quality,

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(3) Moderately-Impacted [5-2.5]: poor water quality, and (4) Severely-Impacted [2.5-0]: very poor water quality. The specific methodologies for computing these biometrics as well as complete descriptions of water quality designations can be found in Duffy (2018), pp. 52-69.

Water Quality Measurements Water quality monitoring occurred at each of our aquatic macroinvertebrate sampling locations on October 7, 2019. Physiochemical parameters were measured using a YSI Professional Plus handheld Mulitparameter instrument. Surface water measurements were taken for dissolved oxygen, pH, water temperature, and conductivity.

Statistical Analyses For each site, replicate mean values and standard errors for each parameter were calculated. A Generalized linear model was used to compare parameter means among sites. Analysis of Variance (ANOVA) was used to compare metrics across sites, with a significance alpha value of 0.05. All analyses were performed in R, version 3.5.1 (02 July 2018).

Results

Ravena Rd Benthic aquatic habitat at Old Ravena Rd was favorable with overall substrate comprised of 48.3% gravel, 15% cobble, and 23.3% sand. The substrate composition at each replicate sampling location was similar (Figure 2, left panel). Aquatic macroinvertebrate sampling efforts at yielded 669 individuals across a taxonomic span of 14 Orders and 44 genera (Table 3). The macroinvertebrate community composition was dominated by midges (Diptera: Chironomidae) and aquatic worms (Oligochaeta), comprising 37.4% and 36.2%, respectively (Figure 3). Aquatic insects were represented by mayflies (11.7%), beetles (4.8%), stoneflies (2.4%), and caddisflies (2.1%). The most prevalent aquatic crustacea were Gammarus amphipods at 2.5%. Despite the prevalence of midges and aquatic worms, Ravena Rd samples were adequately diverse, averaging 31 taxa per replicate sample, implying a non-impacted reach. Taxa richness within the impact-sensitive taxa of mayflies, stoneflies, and caddisflies averaged 10.9, also implying a non-impacted reach. The overall sensitivity of all taxa as represented by the Hilsenhoff Biotic Index calculated to 6.05, designating a semi-impacted reach. The similarity of this community to a model community, defined by the Percent-Model-Affinity biometric, is 51%, a designation of semi-impacted. The four metrics calculated for Ravena Rd all rate higher than the collection sites at Coeymans WMA and Route 144 (Figure 6, Table 6). Overall, the cumulative BAP score for the Ravena Rd site is 6.84, designating a semi-impacted stream reach or good water quality (Figure 7).

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Coeymans WMA Benthic aquatic habitat at Coeymans WMA was unfavorable with overall substrate comprised of 63% sand, 21% gravel, 15% silt/clay, and 0% cobble. The substrate composition at each replicate sampling location was similar (Figure 2, middle panel). Aquatic macroinvertebrate sampling efforts yielded 677 individuals across a taxonomic span of 10 Orders and 25 genera (Table 4). The macroinvertebrate community composition was dominated by midges and aquatic worms, comprising 39.9% and 31.8%, respectively (Figure 4). Amphipods comprised of 15% of the population. Aquatic insects were in the minority with 4.4% mayflies and 3.4% beetles. Habitat limitations, indicated as siltation by Bode (2004), likely contribute to the lower taxa richness at 22.7, implying a semi-impacted reach. Impact-sensitive taxa of mayflies, stoneflies, and caddisflies averaged only 4, implying a moderately-impacted reach. The Hilsenhoff Biotic Index calculated to 6.34, designating a semi-impacted reach. The Percent- Model-Affinity biometric, is 43.2%, a designation of semi-impacted. The four metrics calculated for Coeymans WMA score below those of the upstream Ravena Rd site (Figure 6, Table 6). The cumulative BAP score for the Coeymans WMA site is 4.94, designating a moderately-impacted stream reach or poor water quality (Figure 7).

Route 144 Instream habitat at Route 144 below the Industrial park zone was almost entirely bedrock, comprising 86% of the substrate, while cobble and gravel only represented 15% and 6% respectively. Habitat conditions were similar across all replicates (Figure 2, right panel). Macroinvertebrate collections at Route 144 contained 670 organisms across 10 Orders and 30 genera (Table 5). Midges and aquatic worms dominated the benthic invertebrate community at 43.6% and 37.9% respectively. Caddisflies represented the majority of aquatic insects with only 6.4%, with mayflies coming in second at 4.2%. Beetles and True Flies round out the insect representation, each with 2.1% community abundance. The mean taxa richness at Route 144 was 23.3, implying a semi-impacted reach. The impact-sensitive EPT taxa richness was 6.0, at the threshold of semi & moderately impacted. The HBI index calculated to 6.24, designating semi-impacted. The Percent-Model-Affinity calculated to 43.7, designating moderately-impacted. The four biometric values for Route 144 were similar to the Coeymans WMA location (Figure 6, Table 6). The BAP score for Route 144 of 5.30 designates an overall semi-impacted reach (Figure 7).

Results Summary The reach of Coeymans Creek at Ravena Rd was observed to have significantly higher taxa richness (P=0.0380), EPT richness (P=0.0454), and Percent-Model-Affinities (P=0.0427) than compared to our Route 144 site below the industrial park. A lower (improved) HBI value was observed at Ravena Rd compared to Route 144, but this was not significantly different. The Coeymans WMA site did not differ significantly across biometrics from the Route 144 site. The overall BAP water quality score of 6.84 at Ravena Rd was significantly higher than both the

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Coeymans WMA (P=0.0044) and Route 144 (P=0.0113) sites. The BAP did not significantly differ between Coeymans WMA and Route 144.

Water Quality Measurements All locations were observed to possess water quality readings consistent with flowing surface waters in New York State. The values observed are below in Table 2.

Table 2: Water quality readings measured on October 7, 2019. Parameter Units Ravena Coeymans Route Rd WMA 144 Dissolved Oxygen mg/L 9.43 9.58 10.42 Temperature °C 13.0 13.2 13.3 Conductivity µS/cm 750 760 1130 pH - 7.76 7.89 8.13

A slowly increasing pH and conductivity was observed along a downstream progression, however, these values are still within NYS ambient standards of 6.5-8.5 pH. There is no conductivity standard to be evaluated against, only the guidance that conductivity values above 300µS/cm are considered ‘hard water’. All measured values are within ranges which support aquatic life.

Discussion Coeymans Creek at Ravena Road was found to possess good water quality with a semi- impacted impairment designation based on a Biological Assessment Profile score of 6.84. The high proportion of midges and aquatic worms, relative to favorable habitat conditions, suggests some ambient impairment of the water quality of Coeymans Creek at this location due to upstream influences. A ‘model’ stream community as defined by New York State’s Department of Environmental Conservation (pie chart at right) suggests aquatic worms comprise only 5% of a community population, while midges comprise around 20%. Mayflies, caddisflies, and beetles are under- represented in our samples. Water quality data collected downstream of Ravena Rd on October 7, 2019 showed physiochemical data to be within normal biological limits. Despite the underrepresentation overall, macroinvertebrate genera with low tolerances to disturbance and pollution were collected: Paraleuctra (Plecoptera: Leuctridae), Ephemerella (Ephemeroptera:

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Ephemerellidae), Pagastia (Diptera: Chironomidae), and Taeniopteryx (Plecoptera: Taenioperigidae). Consequently, an assessment can be made that the aquatic invertebrate community found here can be considered ‘normal’ for this segment of Coeymans Creek. A significant decline in aquatic insect representation was observed at the Coeymans WMA site, and this could be attributed to the lack of preferred rocky instream gravel/cobble habitat. Sand and finer sediments are more favorable to midges and aquatic worms, so their dominance here is not surprising. Lack of larger particles, and thus the refugia, or ‘living spaces’, provided between the substrate particles limit colonization and feeding habitat for many aquatic insects. The physiochemical parameters measured at Coeymans WMA are nearly identical to the upstream WMA site. Individuals of Ephemerella and Taeniopteryx were recorded in collections, suggesting adequate water quality conditions exist. The BAP score of 4.94, while designating poor water quality and moderate impact is right at the good/poor quality threshold of 5.0. The evidence here suggests aquatic macroinvertebrate communities are habitat limited at this site and not impaired by adverse physiochemical water quality conditions. The downstream most collection site– Route 144, is immediately downstream of an industrial park zone, and a key goal of this study was to determine if the localized industrial landscape activity may be adversely harming aquatic life in Coeymans Creek in the vicinity. Relative to our upstream Ravena Rd control location, significant declines in taxa richness, EPT richness, and % Model Affinity values were found at the Route 144 site. While habitat limitation here, as defined by the prevalence of bedrock substrate, may contribute to biometric declines, bedrock habitat alone is not exclusively deleterious. Consequently, other factors are contributing to the reduction in taxa diversity at Route 144. No substantial differences in dissolved oxygen, pH, and water temperature were observed among Route 144 and the upstream two locations. The conductivity at this location (1,130 µS/cm) is nearly 50% higher than the two locations upstream of the industrial zone. Mayflies are particularly sensitive to conductivity changes, as their flat external gills are more susceptible to osmotic regulation (Kefford et al. 2011; Pond, 2010). While mayflies only represent minority contributions to the overall invertebrate community, a 40-50% drop in mayfly taxonomic representation occurs at Route 144. Six mayfly genera are represented at Ravena Rd and five genera are represented at Coeymans WMA, while only three are represented at Route 144. Although two of those three, Ephemerella and Cloen (Ephemeroptera: Baetidae), are quite sensitive to water quality changes. Some small tributaries entering Coeymans within the industrial zone were found to have acutely elevated conductivity values during runoff events, where chloride concentrations were as high as 42,000 mg/L in one instance. Another approach to determine if acute degradation is occurring in lower Coeymans Creek is to compare historical data, if available. In this case, historical data collected at two of our three sampling locations, Ravena Rd and Route 144, is accessible through NY DEC’s Stream Biomonitoring Unit. The current study data is comparable despite the ~30yr span of collection times since the same collection methodologies were employed. Historical macroinvertebrate

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data can be accessed from NY DEC’s Division of Water water-quality monitoring page: https://www.dec.ny.gov/chemical/23848.html. Historical biometric values for lower Coeymans Creek can be found in Table 7 of this report. At Ravena Rd, long term improvements in taxa richness and EPT richness were observed, while HBI Index values and Model Affinity percentages remain consistent (Figure 8, solid lines). At Route 144, current findings appear to be consistent with biometric data collected over the last 30 years (Figure 8, dashed lines). Overall, there appears to be a slight long-term improvement in BAP score at Ravena Rd, which has historically possessed good water quality and a semi-impacted designation (Figure 9, solid line). Route 144 historically fluctuates between good and poor water quality, hovering around the designation threshold between moderately-impacted and semi-impacted (Figure 9, dashed line). The BAP values assessed in 2019 are consistent with those calculated since 1987.

Conclusions

To address the stated goal of assessing whether the industrial activities surrounding lower Coeymans Creek are negatively influencing the local invertebrate biota, downstream of the industrial /commercial activity, the Biological Assessment Profile score designates the creek as semi-impacted with good water quality. It is recognized that the water quality score is on the lower end of ‘good water quality’, and biometric values are lower than our control site upstream at Ravena Rd. The decrease in BAP score is likely due to a combination of habitat limitation and, as suggested by Bode in 2004, "probable stressors relating to industrial inputs". The existing industrial activities surrounding lower Coeymans may contribute to declining metrics relative to Ravena Rd, as runoff chemistry indicates harmful levels of some analytes. Direct runoff from polluting tributaries within the industrial area may have higher, localized impacts on biota surrounding the tributary delta. However, it is difficult to make definitive, causative conclusions because substrate conditions limit differentiation between habitat declines and industrial influences. Additionally, the overall dominance of midges and aquatic worms at all of our collection sites broadly suggest lower Coeymans Creek is impacted by cumulative and legacy effects built up throughout its watershed.

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References

Bode, R.W., Novak, M.A., Abele, L.E., Heitzman, D.L., and Smith, A.J. 2004. 30 Year Trends in Water Quality of Rivers and Streams in New York State Based on Macroinvertebrate Data. Stream Biomonitoring Unit, Division of Water, New York State Department of Environmental Conservation, 625 Broadway, Albany, NY, 12233. https://www.dec.ny.gov/docs/water_pdf/sbu30yrtrends.pdf

Kefford B.J., Marchant R., Schafer R.B., Metzeling L., Dunlop J.E., Choy S.C., and Goonan P. 2011. The definition of species richness used by species sensitivity distributions approximates observed effects of salinity on stream macroinvertebrates. Environmental Pollution, Volume (159), pp 302–310.

Pond, G.J. 2010. Patterns of Ephemeroptera taxa loss in Appalachian headwater streams (Kentucky, USA). Hydrobiologia. Vol 641: 185-201.

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Table 3: Aquatic macroinvertebrate taxa collected from Coeymans Creek at Ravena Rd on June 7, 2019. Site Location SampleType Rep Phylum Class Order Family Genus N Coeymans Creek Ravena Rd Kick 1 Annelida Oligochaeta 83 Coeymans Creek Ravena Rd Kick 1 Arachnidia Trombidiformes Hydrachnidia 2 Coeymans Creek Ravena Rd Kick 1 Arthropoda Insecta Coleoptera Dytiscidae Hydroporus 1 Coeymans Creek Ravena Rd Kick 1 Arthropoda Insecta Coleoptera Elmidae Optioservus 3 Coeymans Creek Ravena Rd Kick 1 Arthropoda Insecta Coleoptera Elmidae Stenelmis 5 Coeymans Creek Ravena Rd Kick 1 Arthropoda Insecta Coleoptera Pspheniidae Psphenus 1 Coeymans Creek Ravena Rd Kick 1 Arthropoda Insecta Diptera Chironomidae Brillia 1 Coeymans Creek Ravena Rd Kick 1 Arthropoda Insecta Diptera Chironomidae Chironomini 1 Coeymans Creek Ravena Rd Kick 1 Arthropoda Insecta Diptera Chironomidae Eukiefferiella 2 Coeymans Creek Ravena Rd Kick 1 Arthropoda Insecta Diptera Chironomidae Orthocladiinae 38 Coeymans Creek Ravena Rd Kick 1 Arthropoda Insecta Diptera Chironomidae Orthocladius 8 Coeymans Creek Ravena Rd Kick 1 Arthropoda Insecta Diptera Chironomidae Orthocladius 8 Coeymans Creek Ravena Rd Kick 1 Arthropoda Insecta Diptera Chironomidae Polypedilum 1 Coeymans Creek Ravena Rd Kick 1 Arthropoda Insecta Diptera Chironomidae Tanytarsus 1 Coeymans Creek Ravena Rd Kick 1 Arthropoda Insecta Diptera Chironomidae Thiememannimyia 2 Coeymans Creek Ravena Rd Kick 1 Arthropoda Insecta Diptera Chironomidae Thienemanniella 1 Coeymans Creek Ravena Rd Kick 1 Arthropoda Insecta Diptera Chironomidae Tvetinia 5 Coeymans Creek Ravena Rd Kick 1 Arthropoda Insecta Diptera Tipulidae Antocha 1 Coeymans Creek Ravena Rd Kick 1 Arthropoda Insecta Ephemeroptera Baetidae Acentrella 5 Coeymans Creek Ravena Rd Kick 1 Arthropoda Insecta Ephemeroptera Baetidae Acerpenna 9 Coeymans Creek Ravena Rd Kick 1 Arthropoda Insecta Ephemeroptera Ephemerellidae Ephemerella 4 Coeymans Creek Ravena Rd Kick 1 Arthropoda Insecta Ephemeroptera Heptageniidae Nixe 4 Coeymans Creek Ravena Rd Kick 1 Arthropoda Insecta Ephemeroptera Leptohyphidae Tricorythodes 13 Coeymans Creek Ravena Rd Kick 1 Arthropoda Insecta Odonata Gomphidae 1 Coeymans Creek Ravena Rd Kick 1 Arthropoda Insecta Plecoptera Leuctridae Paraleuctra 2 Coeymans Creek Ravena Rd Kick 1 Arthropoda Insecta Plecoptera Perlidae Perlesta 2 Coeymans Creek Ravena Rd Kick 1 Arthropoda Insecta Plecoptera Taeniopterygidae Taeniopteryx 5 Coeymans Creek Ravena Rd Kick 1 Arthropoda Insecta Trichoptera Hydropsychidae Hydropsyche 4 Coeymans Creek Ravena Rd Kick 1 Arthropoda Insecta Trichoptera Hydroptilidae Hydroptilla 1 Coeymans Creek Ravena Rd Kick 1 Arthropoda Malacostra Amphipoda Gammaridae Gammarus 7 Coeymans Creek Ravena Rd Kick 2 Annelida Oligochaeta 81 Coeymans Creek Ravena Rd Kick 2 Arachnidia Trombidiformes Hydrachnidia 2 Coeymans Creek Ravena Rd Kick 2 Arthropoda Insecta Coleoptera Dytiscidae 1 Coeymans Creek Ravena Rd Kick 2 Arthropoda Insecta Coleoptera Elmidae Optioservus 1 Coeymans Creek Ravena Rd Kick 2 Arthropoda Insecta Coleoptera Elmidae Promoresia 1 Coeymans Creek Ravena Rd Kick 2 Arthropoda Insecta Coleoptera Elmidae Stenelmis 7 Coeymans Creek Ravena Rd Kick 2 Arthropoda Insecta Coleoptera Pspheniidae Psphenus 2 Coeymans Creek Ravena Rd Kick 2 Arthropoda Insecta Diptera Ceratopogonidae Culicoides 1 Coeymans Creek Ravena Rd Kick 2 Arthropoda Insecta Diptera Chironomidae Chironomini 1 Coeymans Creek Ravena Rd Kick 2 Arthropoda Insecta Diptera Chironomidae Eukiefferiella 4 Coeymans Creek Ravena Rd Kick 2 Arthropoda Insecta Diptera Chironomidae Orthocladiinae 32 Coeymans Creek Ravena Rd Kick 2 Arthropoda Insecta Diptera Chironomidae Orthocladius 36 Coeymans Creek Ravena Rd Kick 2 Arthropoda Insecta Diptera Chironomidae Orthocladius 7 Coeymans Creek Ravena Rd Kick 2 Arthropoda Insecta Diptera Chironomidae Polypedilum 1 Coeymans Creek Ravena Rd Kick 2 Arthropoda Insecta Diptera Chironomidae Tanytarsus 4 Coeymans Creek Ravena Rd Kick 2 Arthropoda Insecta Diptera Chironomidae Thienemanniella 2 Coeymans Creek Ravena Rd Kick 2 Arthropoda Insecta Diptera Chironomidae Tvetinia 3 Coeymans Creek Ravena Rd Kick 2 Arthropoda Insecta Diptera Tipulidae Antocha 2 Coeymans Creek Ravena Rd Kick 2 Arthropoda Insecta Ephemeroptera Baetidae Acentrella 3 Coeymans Creek Ravena Rd Kick 2 Arthropoda Insecta Ephemeroptera Baetidae Acerpenna 8 Coeymans Creek Ravena Rd Kick 2 Arthropoda Insecta Ephemeroptera Caeniidae Caenis 1 Coeymans Creek Ravena Rd Kick 2 Arthropoda Insecta Ephemeroptera Ephemerellidae Ephemerella 1 Coeymans Creek Ravena Rd Kick 2 Arthropoda Insecta Ephemeroptera Ephemerellidae Eurylophella 2 Coeymans Creek Ravena Rd Kick 2 Arthropoda Insecta Ephemeroptera Heptageniidae Nixe 3 Coeymans Creek Ravena Rd Kick 2 Arthropoda Insecta Ephemeroptera Leptohyphidae Tricorythodes 7 Coeymans Creek Ravena Rd Kick 2 Arthropoda Insecta Megaloptera Corydalidae Corydalus 1 Coeymans Creek Ravena Rd Kick 2 Arthropoda Insecta Plecoptera Perlidae Agnetina 1 Coeymans Creek Ravena Rd Kick 2 Arthropoda Insecta Plecoptera Perlidae Perlesta 1 Coeymans Creek Ravena Rd Kick 2 Arthropoda Insecta Plecoptera Taeniopterygidae Taeniopteryx 2 Coeymans Creek Ravena Rd Kick 2 Arthropoda Insecta Trichoptera Hydropsychidae Hydropsyche 3 Coeymans Creek Ravena Rd Kick 2 Arthropoda Insecta Trichoptera Hydroptilidae Hydroptilla 1 Coeymans Creek Ravena Rd Kick 2 Arthropoda Insecta Trichoptera Polycentropodidae Nyctiophylax 1 Coeymans Creek Ravena Rd Kick 2 Arthropoda Malacostra Amphipoda Gammaridae Gammarus 8 Coeymans Creek Ravena Rd Kick 3 Annelida Oligochaeta 78 Coeymans Creek Ravena Rd Kick 3 Arachnidia Trombidiformes Hydrachnidia 2 Coeymans Creek Ravena Rd Kick 3 Arthropoda Insecta Coleoptera Elmidae Optioservus 3 Coeymans Creek Ravena Rd Kick 3 Arthropoda Insecta Coleoptera Elmidae Stenelmis 6 Coeymans Creek Ravena Rd Kick 3 Arthropoda Insecta Coleoptera Pspheniidae Psphenus 1 Coeymans Creek Ravena Rd Kick 3 Arthropoda Insecta Collembola Isotomeridae Isotomerus 1 Coeymans Creek Ravena Rd Kick 3 Arthropoda Insecta Diptera Chironomidae Brillia 1 Coeymans Creek Ravena Rd Kick 3 Arthropoda Insecta Diptera Chironomidae Chironomini 5 Coeymans Creek Ravena Rd Kick 3 Arthropoda Insecta Diptera Chironomidae Cricotopus 1 Coeymans Creek Ravena Rd Kick 3 Arthropoda Insecta Diptera Chironomidae Eukiefferiella 3 Coeymans Creek Ravena Rd Kick 3 Arthropoda Insecta Diptera Chironomidae Orthocladiinae 25 Coeymans Creek Ravena Rd Kick 3 Arthropoda Insecta Diptera Chironomidae Orthocladius 36 Coeymans Creek Ravena Rd Kick 3 Arthropoda Insecta Diptera Chironomidae Orthocladius 11 Coeymans Creek Ravena Rd Kick 3 Arthropoda Insecta Diptera Chironomidae Pagastia 1 Coeymans Creek Ravena Rd Kick 3 Arthropoda Insecta Diptera Chironomidae Polypedilum aviceps 1 Coeymans Creek Ravena Rd Kick 3 Arthropoda Insecta Diptera Chironomidae Tanytarsini 2 Coeymans Creek Ravena Rd Kick 3 Arthropoda Insecta Diptera Chironomidae Tanytarsus 2 Coeymans Creek Ravena Rd Kick 3 Arthropoda Insecta Diptera Chironomidae Tvetinia 4 Coeymans Creek Ravena Rd Kick 3 Arthropoda Insecta Diptera Simulidae Simulium 1 Coeymans Creek Ravena Rd Kick 3 Arthropoda Insecta Diptera Tipulidae Dicranota 1 Coeymans Creek Ravena Rd Kick 3 Arthropoda Insecta Ephemeroptera Baetidae Acentrella 2 Coeymans Creek Ravena Rd Kick 3 Arthropoda Insecta Ephemeroptera Baetidae Acerpenna 7 Coeymans Creek Ravena Rd Kick 3 Arthropoda Insecta Ephemeroptera Ephemerellidae Ephemerella 1 Coeymans Creek Ravena Rd Kick 3 Arthropoda Insecta Ephemeroptera Heptageniidae Nixe 2 Coeymans Creek Ravena Rd Kick 3 Arthropoda Insecta Ephemeroptera Leptohyphidae Tricorythodes 6 Coeymans Creek Ravena Rd Kick 3 Arthropoda Insecta Megaloptera Corydalidae Corydalus 1 Coeymans Creek Ravena Rd Kick 3 Arthropoda Insecta Odonata Calopterygidae Calopteryx 1 Coeymans Creek Ravena Rd Kick 3 Arthropoda Insecta Plecoptera Capniidae Capnia 2 Coeymans Creek Ravena Rd Kick 3 Arthropoda Insecta Plecoptera Perlidae Perlesta 1 Coeymans Creek Ravena Rd Kick 3 Arthropoda Insecta Trichoptera Hydroptilidae Hydroptilla 4 Coeymans Creek Ravena Rd Kick 3 Arthropoda Malacostra Amphipoda Gammaridae Gammarus 2 Coeymans Creek Ravena Rd Kick 3 Mollusca Gastropoda Bassomatophora Physidae Physella 1 Coeymans Creek Ravena Rd Kick 3 Nematoda 2 TOTAL 669

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Table 4: Aquatic macroinvertebrates collected from Coeymans Creek at Coeymans Wildlife Management Area on June 7, 2019. Site Location SampleType Rep Phylum Class Order Family Genus N Coeymans Creek Coeymans WMA Kick 1 Annelida Oligochaeta 81 Coeymans Creek Coeymans WMA Kick 1 Arthropoda Insecta Coleoptera Elmidae Dubiraphia 4 Coeymans Creek Coeymans WMA Kick 1 Arthropoda Insecta Coleoptera Elmidae Optioservus 3 Coeymans Creek Coeymans WMA Kick 1 Arthropoda Insecta Coleoptera Elmidae Stenelmis 4 Coeymans Creek Coeymans WMA Kick 1 Arthropoda Insecta Diptera Ceratopogonidae Culicoides 4 Coeymans Creek Coeymans WMA Kick 1 Arthropoda Insecta Diptera Chironomidae Chironomini 2 Coeymans Creek Coeymans WMA Kick 1 Arthropoda Insecta Diptera Chironomidae Microtendipes pedellus 1 Coeymans Creek Coeymans WMA Kick 1 Arthropoda Insecta Diptera Chironomidae Orthocladiinae 59 Coeymans Creek Coeymans WMA Kick 1 Arthropoda Insecta Diptera Chironomidae Orthocladius 7 Coeymans Creek Coeymans WMA Kick 1 Arthropoda Insecta Diptera Chironomidae Orthocladius 4 Coeymans Creek Coeymans WMA Kick 1 Arthropoda Insecta Diptera Chironomidae Polypedilum 1 Coeymans Creek Coeymans WMA Kick 1 Arthropoda Insecta Diptera Chironomidae Tanytarsus 2 Coeymans Creek Coeymans WMA Kick 1 Arthropoda Insecta Diptera Chironomidae Tvetinia 1 Coeymans Creek Coeymans WMA Kick 1 Arthropoda Insecta Diptera Tipulidae Dicranota 2 Coeymans Creek Coeymans WMA Kick 1 Arthropoda Insecta Ephemeroptera Caeniidae Caenis 3 Coeymans Creek Coeymans WMA Kick 1 Arthropoda Insecta Ephemeroptera Ephemerellidae Ephemerella 1 Coeymans Creek Coeymans WMA Kick 1 Arthropoda Insecta Ephemeroptera Heptageniidae 4 Coeymans Creek Coeymans WMA Kick 1 Arthropoda Insecta Ephemeroptera Leptohyphidae Tricorythodes 2 Coeymans Creek Coeymans WMA Kick 1 Arthropoda Insecta Plecoptera Taeniopterygidae Taeniopteryx 1 Coeymans Creek Coeymans WMA Kick 1 Arthropoda Insecta Trichoptera Hydropsychidae Hydropsyche 1 Coeymans Creek Coeymans WMA Kick 1 Arthropoda Malacostra Amphipoda Gammaridae Gammarus 23 Coeymans Creek Coeymans WMA Kick 1 Arthropoda Malacostra Isopoda Asellidae Caecidotea 3 Coeymans Creek Coeymans WMA Kick 1 Mollusca Bivalvae Veneroida Sphaeriidae 1 Coeymans Creek Coeymans WMA Kick 1 Platyhelmenthes Turbellaria 1 Coeymans Creek Coeymans WMA Kick 2 Annelida Oligochaeta 92 Coeymans Creek Coeymans WMA Kick 2 Arthropoda Insecta Coleoptera Elmidae Dubiraphia 3 Coeymans Creek Coeymans WMA Kick 2 Arthropoda Insecta Coleoptera Elmidae Optioservus 2 Coeymans Creek Coeymans WMA Kick 2 Arthropoda Insecta Coleoptera Elmidae Stenelmis 4 Coeymans Creek Coeymans WMA Kick 2 Arthropoda Insecta Diptera Chironomidae Chironomini 5 Coeymans Creek Coeymans WMA Kick 2 Arthropoda Insecta Diptera Chironomidae Eukiefferiella 1 Coeymans Creek Coeymans WMA Kick 2 Arthropoda Insecta Diptera Chironomidae Micropsectra 1 Coeymans Creek Coeymans WMA Kick 2 Arthropoda Insecta Diptera Chironomidae Orthocladiinae 34 Coeymans Creek Coeymans WMA Kick 2 Arthropoda Insecta Diptera Chironomidae Orthocladius 12 Coeymans Creek Coeymans WMA Kick 2 Arthropoda Insecta Diptera Chironomidae Orthocladius 8 Coeymans Creek Coeymans WMA Kick 2 Arthropoda Insecta Diptera Chironomidae Polypedilum 3 Coeymans Creek Coeymans WMA Kick 2 Arthropoda Insecta Diptera Chironomidae Tanypodinae 1 Coeymans Creek Coeymans WMA Kick 2 Arthropoda Insecta Diptera Chironomidae Tanytarsini 6 Coeymans Creek Coeymans WMA Kick 2 Arthropoda Insecta Diptera Chironomidae Tanytarsus 6 Coeymans Creek Coeymans WMA Kick 2 Arthropoda Insecta Diptera Chironomidae Thienemanniella 1 Coeymans Creek Coeymans WMA Kick 2 Arthropoda Insecta Diptera Chironomidae Tvetinia 3 Coeymans Creek Coeymans WMA Kick 2 Arthropoda Insecta Diptera Tipulidae Dicranota 2 Coeymans Creek Coeymans WMA Kick 2 Arthropoda Insecta Ephemeroptera Baetidae 1 Coeymans Creek Coeymans WMA Kick 2 Arthropoda Insecta Ephemeroptera Caeniidae Caenis 8 Coeymans Creek Coeymans WMA Kick 2 Arthropoda Insecta Ephemeroptera Leptohyphidae Tricorythodes 5 Coeymans Creek Coeymans WMA Kick 2 Arthropoda Insecta Plecoptera Perlidae Perlesta 1 Coeymans Creek Coeymans WMA Kick 2 Arthropoda Malacostra Amphipoda Gammaridae Gammarus 37 Coeymans Creek Coeymans WMA Kick 2 Arthropoda Malacostra Isopoda Asellidae Caecidotea 2 Coeymans Creek Coeymans WMA Kick 2 Mollusca Bivalvae Veneroida Sphaeriidae 7 Coeymans Creek Coeymans WMA Kick 2 Nematoda 3 Coeymans Creek Coeymans WMA Kick 3 Annelida Oligochaeta 42 Coeymans Creek Coeymans WMA Kick 3 Arthropoda Insecta Coleoptera Elmidae Dubiraphia 1 Coeymans Creek Coeymans WMA Kick 3 Arthropoda Insecta Coleoptera Elmidae Stenelmis 2 Coeymans Creek Coeymans WMA Kick 3 Arthropoda Insecta Diptera Ceratopogonidae Culicoides 1 Coeymans Creek Coeymans WMA Kick 3 Arthropoda Insecta Diptera Chironomidae Eukiefferiella 1 Coeymans Creek Coeymans WMA Kick 3 Arthropoda Insecta Diptera Chironomidae Micropsectra 11 Coeymans Creek Coeymans WMA Kick 3 Arthropoda Insecta Diptera Chironomidae Microtendipes rydalensis 4 Coeymans Creek Coeymans WMA Kick 3 Arthropoda Insecta Diptera Chironomidae Orthocladiinae 53 Coeymans Creek Coeymans WMA Kick 3 Arthropoda Insecta Diptera Chironomidae Orthocladius 9 Coeymans Creek Coeymans WMA Kick 3 Arthropoda Insecta Diptera Chironomidae Orthocladius 3 Coeymans Creek Coeymans WMA Kick 3 Arthropoda Insecta Diptera Chironomidae Polypedilum 4 Coeymans Creek Coeymans WMA Kick 3 Arthropoda Insecta Diptera Chironomidae Polypedilum 2 Coeymans Creek Coeymans WMA Kick 3 Arthropoda Insecta Diptera Chironomidae Tanytarsini 16 Coeymans Creek Coeymans WMA Kick 3 Arthropoda Insecta Diptera Chironomidae Tanytarsus 7 Coeymans Creek Coeymans WMA Kick 3 Arthropoda Insecta Diptera Chironomidae Tvetinia 2 Coeymans Creek Coeymans WMA Kick 3 Arthropoda Insecta Ephemeroptera Caeniidae Caenis 4 Coeymans Creek Coeymans WMA Kick 3 Arthropoda Insecta Ephemeroptera Leptohyphidae Tricorythodes 2 Coeymans Creek Coeymans WMA Kick 3 Arthropoda Malacostra Amphipoda Gammaridae Gammarus 42 Coeymans Creek Coeymans WMA Kick 3 Mollusca Bivalvae Veneroida Sphaeriidae 8 TOTAL 677 Page 11 of 25

Table 5: Aquatic macroinvertebrates collected from Coeymans Creek at Route 144 on June 7, 2019. Site Location SampleType Rep Phylum Class Order Family Genus N Coeymans Creek Route 144 Kick 1 Annelida Oligochaeta 102 Coeymans Creek Route 144 Kick 1 Arachnidia Trombidiformes Hydrachnidia 3 Coeymans Creek Route 144 Kick 1 Arthropoda Insecta Coleoptera Elmidae Promoresia 4 Coeymans Creek Route 144 Kick 1 Arthropoda Insecta Coleoptera Elmidae Stenelmis 3 Coeymans Creek Route 144 Kick 1 Arthropoda Insecta Diptera Chironomidae Dicrotendipes 1 Coeymans Creek Route 144 Kick 1 Arthropoda Insecta Diptera Chironomidae Eukiefferiella 2 Coeymans Creek Route 144 Kick 1 Arthropoda Insecta Diptera Chironomidae Orthocladiinae 24 Coeymans Creek Route 144 Kick 1 Arthropoda Insecta Diptera Chironomidae Orthocladius 16 Coeymans Creek Route 144 Kick 1 Arthropoda Insecta Diptera Chironomidae Orthocladius 3 Coeymans Creek Route 144 Kick 1 Arthropoda Insecta Diptera Chironomidae Polypedilum 4 Coeymans Creek Route 144 Kick 1 Arthropoda Insecta Diptera Chironomidae Tanytarsus 5 Coeymans Creek Route 144 Kick 1 Arthropoda Insecta Diptera Chironomidae Tvetinia 32 Coeymans Creek Route 144 Kick 1 Arthropoda Insecta Diptera Empidae Hemerodromia 3 Coeymans Creek Route 144 Kick 1 Arthropoda Insecta Ephemeroptera Baetidae Acerpenna 11 Coeymans Creek Route 144 Kick 1 Arthropoda Insecta Ephemeroptera Ephemerellidae Ephemerella 1 Coeymans Creek Route 144 Kick 1 Arthropoda Insecta Trichoptera Hydropsychidae Cheumatopsyche 3 Coeymans Creek Route 144 Kick 1 Arthropoda Insecta Trichoptera Hydropsychidae Hydropsyche 5 Coeymans Creek Route 144 Kick 1 Arthropoda Insecta Trichoptera Hydroptilidae Hydroptilla 11 Coeymans Creek Route 144 Kick 1 Arthropoda Malacostra Amphipoda Gammaridae Gammarus 3 Coeymans Creek Route 144 Kick 1 Platyhelmenthes Turbellaria 3 Coeymans Creek Route 144 Kick 2 Annelida Oligochaeta 63 Coeymans Creek Route 144 Kick 2 Arachnidia Trombidiformes Hydrachnidia 1 Coeymans Creek Route 144 Kick 2 Arthropoda Insecta Coleoptera Elmidae Promoresia 2 Coeymans Creek Route 144 Kick 2 Arthropoda Insecta Diptera Chironomidae Chironomini 6 Coeymans Creek Route 144 Kick 2 Arthropoda Insecta Diptera Chironomidae Eukiefferiella 14 Coeymans Creek Route 144 Kick 2 Arthropoda Insecta Diptera Chironomidae Orthocladiinae 33 Coeymans Creek Route 144 Kick 2 Arthropoda Insecta Diptera Chironomidae Orthocladius 18 Coeymans Creek Route 144 Kick 2 Arthropoda Insecta Diptera Chironomidae Orthocladius 2 Coeymans Creek Route 144 Kick 2 Arthropoda Insecta Diptera Chironomidae Polypedilum 7 Coeymans Creek Route 144 Kick 2 Arthropoda Insecta Diptera Chironomidae Tanytarsus 2 Coeymans Creek Route 144 Kick 2 Arthropoda Insecta Diptera Chironomidae Tvetinia 28 Coeymans Creek Route 144 Kick 2 Arthropoda Insecta Diptera Empidae Hemerodromia 2 Coeymans Creek Route 144 Kick 2 Arthropoda Insecta Diptera Simulidae Simulium 4 Coeymans Creek Route 144 Kick 2 Arthropoda Insecta Diptera Stratiomyidae Caloparyphus 1 Coeymans Creek Route 144 Kick 2 Arthropoda Insecta Ephemeroptera Baetidae Acerpenna 10 Coeymans Creek Route 144 Kick 2 Arthropoda Insecta Plecoptera Leuctridae 1 Coeymans Creek Route 144 Kick 2 Arthropoda Insecta Plecoptera Perlidae Perlesta 2 Coeymans Creek Route 144 Kick 2 Arthropoda Insecta Trichoptera Hydropsychidae Hydropsyche 3 Coeymans Creek Route 144 Kick 2 Arthropoda Insecta Trichoptera Hydroptilidae Hydroptilla 2 Coeymans Creek Route 144 Kick 2 Arthropoda Malacostra Amphipoda Gammaridae Gammarus 1 Coeymans Creek Route 144 Kick 2 Platyhelmenthes Turbellaria 3 Coeymans Creek Route 144 Kick 3 Annelida Oligochaeta 89 Coeymans Creek Route 144 Kick 3 Arthropoda Insecta Coleoptera Elmidae Dubiraphia 2 Coeymans Creek Route 144 Kick 3 Arthropoda Insecta Coleoptera Elmidae Promoresia 1 Coeymans Creek Route 144 Kick 3 Arthropoda Insecta Coleoptera Elmidae Stenelmis 2 Coeymans Creek Route 144 Kick 3 Arthropoda Insecta Collembola Poduridae Podura 1 Coeymans Creek Route 144 Kick 3 Arthropoda Insecta Diptera Chironomidae Eukiefferiella 13 Coeymans Creek Route 144 Kick 3 Arthropoda Insecta Diptera Chironomidae Microtendipes pedellus 1 Coeymans Creek Route 144 Kick 3 Arthropoda Insecta Diptera Chironomidae Orthocladiinae 15 Coeymans Creek Route 144 Kick 3 Arthropoda Insecta Diptera Chironomidae Orthocladius 22 Coeymans Creek Route 144 Kick 3 Arthropoda Insecta Diptera Chironomidae Orthocladius 1 Coeymans Creek Route 144 Kick 3 Arthropoda Insecta Diptera Chironomidae Polypedilum 2 Coeymans Creek Route 144 Kick 3 Arthropoda Insecta Diptera Chironomidae Polypedilum 3 Coeymans Creek Route 144 Kick 3 Arthropoda Insecta Diptera Chironomidae Tanypodinae 1 Coeymans Creek Route 144 Kick 3 Arthropoda Insecta Diptera Chironomidae Tanytarsini 2 Coeymans Creek Route 144 Kick 3 Arthropoda Insecta Diptera Chironomidae Tanytarsus 7 Coeymans Creek Route 144 Kick 3 Arthropoda Insecta Diptera Chironomidae Thienemanniella 2 Coeymans Creek Route 144 Kick 3 Arthropoda Insecta Diptera Chironomidae Tvetinia 26 Coeymans Creek Route 144 Kick 3 Arthropoda Insecta Diptera Empidae Hemerodromia 2 Coeymans Creek Route 144 Kick 3 Arthropoda Insecta Diptera Simulidae Simulium 2 Coeymans Creek Route 144 Kick 3 Arthropoda Insecta Ephemeroptera Baetidae Acerpenna 5 Coeymans Creek Route 144 Kick 3 Arthropoda Insecta Ephemeroptera Baetidae Cloeon 1 Coeymans Creek Route 144 Kick 3 Arthropoda Insecta Plecoptera Perlidae Perlesta 1 Coeymans Creek Route 144 Kick 3 Arthropoda Insecta Trichoptera Helicopsychidae Helicopsyche 1 Coeymans Creek Route 144 Kick 3 Arthropoda Insecta Trichoptera Hydropsychidae Cheumatopsyche 2 Coeymans Creek Route 144 Kick 3 Arthropoda Insecta Trichoptera Hydropsychidae Hydropsyche 5 Coeymans Creek Route 144 Kick 3 Arthropoda Insecta Trichoptera Hydroptilidae Dibusa 1 Coeymans Creek Route 144 Kick 3 Arthropoda Insecta Trichoptera Hydroptilidae Hydroptilla 10 Coeymans Creek Route 144 Kick 3 Arthropoda Malacostra Amphipoda Gammaridae Gammarus 2 Coeymans Creek Route 144 Kick 3 Platyhelmenthes Turbellaria 4 TOTAL 670

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Table 6: Benthic macroinvertebrate community biometric values represented from each collection location on Coeymans Creek on June 7, 2019. Coeymans Collection Taxa Ephemeroptera Hilsenhoff Percent – Biological Creek Replicate Richness Plecoptera Biotic Model Assessment Sample # (SPP) Trichoptera Index Affinity Profile Score Location Richness (HBI) (PMA) (BAP) (EPT) Ravena Rd 1 30 10 5.85 56.7 6.98 Ravena Rd 2 30 13 6.08 51.0 7.11 Ravena Rd 3 33 8 6.21 46.6 6.43 Coeymans WMA 1 24 6 6.38 45.8 5.44 Coeymans WMA 2 25 4 6.50 44.6 5.11 Coeymans WMA 3 19 2 6.14 39.2 4.28 Rte 144 1 20 5 6.37 45.8 4.97 Rte 144 2 21 5 5.98 40.7 4.96 Rte 144 3 29 8 6.38 43.6 5.97

Table 7: Historic benthic macroinvertebrate community biometric values represented from two locations on Coeymans Creek: Ravena Rd and Route 144. Year SPP EPT HBI PMA BAP Ravena Rte 144 Ravena Rte 144 Ravena Rte 144 Ravena Rte 144 Ravena Rte 144 1987 22 21 7 4 5.49 5.95 77 79 6.42 4.84 1988 23 - 6 - 5.50 - 47 - 6.14 - 1998 22 23 7 7 5.25 5.70 58 54 5.16 5.52 2002 - 19 - 6 - 6.17 - 41 - 4.46 2013 - 22 - 9 - 5.33 - 61 - 5.88 2019 31 23 10 6 6.05 6.24 51 43 6.84 5.30

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Figure 1: Aquatic macroinvertebrate collection locations on Lower Coeymans Creek sampled on June 7, 2019.

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Figure 2: Substrate habitat conditions present as qualitatively observed while sampling for aquatic macroinvertebrates within Coeymans Creek on June 7, 2019.

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Figure 3: Aquatic macroinvertebrate community composition at Ravena Rd on Coeymans Creek on June 7, 2019.

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Figure 4: Aquatic macroinvertebrate community composition at Coeymans Wildlife Management Area on Coeymans Creek on June 7, 2019.

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Figure 5: Aquatic macroinvertebrate community composition at Route 144 on Coeymans Creek on June 7, 2019.

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Figure 6: Benthic macroinvertebrate community biometric values for each collection location within Coeymans Creek on June 7, 2019. Points represent the mean of the three replicate values per site and bars represent +/- 2 standard errors.

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Figure 7: The mean Biological Assessment Profile (BAP) Score – a multimetric index of water quality – for each benthic macroinvertebrate collection location within Coeymans Creek on June 7, 2019. Water quality designation ranges are color coded.

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Figure 8: Benthic macroinvertebrate community biometric values observed within Coeymans Creek at Ravena Rd and Route 144 over a 32-year period from 1987 - 2019. Year 2019 data is represented by this study. Data across Years 1987 - 2013 was collected by the New York State Department of Environmental Conservation’s Stream Biomonitoring Unit.

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Figure 9: The Biological Assessment Profile score and water quality designations within Coeymans Creek at Ravena Rd and Route 144 over a 32- year period from 1987 - 2019. Year 2019 data is represented by this study. Data across Years 1987 - 2013 was collected by the New York State Department of Environmental Conservation’s Stream Biomonitoring Unit.

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APPENDIX

Old Ravena Rd Collection Location:

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APPENDIX

Coeymans Wildlife Management Area Collection Location:

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APPENDIX

State Route 144 Collection Location:

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