Maine Department of Environmental Protection Biological Monitoring Program Aquatic Life Classification Attainment Report Station Information Station Number: S-1090 River Basin: Penobscot Waterbody: Penobscot River - Station 1090 HUC8 Name: Lower Penobscot Town: Bradley Latitude: 44 55 10.9 N Directions: ~ 300' DOWNSTREAM OF GREAT WORKS DAM; MID Longitude: 68 37 51.4 W CHANNEL BETWEEN BRADLEY SHORE AND Stream Order: 7 GRASSY ISLAND. ACROSS RIVER FROM OLD TOWN

Sample Information Log Number: 2448 Type of Sample: ROCK BASKET Date Deployed: 7/17/2013 Subsample Factor: X4 Replicates: 3 Date Retrieved: 8/19/2013 Classification Attainment Statutory Class: B Final Determination: A Date: 10/4/2016 Model Result with P≥0.6: A Reason for Determination: Model Date Last Calculated: 9/28/2016 Comments: Model Probabilities First Stage Model C or Better Model Class A 0.45 Class C 0.01 Class A, B, or C 1.00 Class B 0.54 NA 0.00 Non-Attainment 0.00 B or Better Model A Model Class A or B 1.00 Class A 0.87 Class C or Non-Attainment 0.00 Class B or C or Non-Attainment 0.13 Model Variables 01 Total Mean Abundance 2036.00 18 Relative Abundance Ephemeroptera 0.08 02 Generic Richness 29.00 19 EPT Generic Richness 18.00 03 Mean Abundance 13.33 21 Sum of Abundances: Dicrotendipes, 0.00 04 Ephemeroptera Mean Abundance 165.33 Micropsectra, Parachironomus, Helobdella 05 Shannon-Wiener Generic Diversity 2.16 23 Relative Generic Richness- Plecoptera 0.07 06 Hilsenhoff Biotic Index 2.73 25 Sum of Abundances: Cheumatopsyche, 29.33 07 Relative Abundance - Chironomidae 0.04 Cricotopus, Tanytarsus, Ablabesmyia 08 Relative Generic Richness Diptera 0.28 26 Sum of Abundances: Acroneuria, 38.81 09 Hydropsyche Abundance 306.67 Maccaffertium, Stenonema 11 Cheumatopsyche Abundance 29.33 28 EP Generic Richness/14 0.79 12 EPT Generic Richness/ Diptera 2.25 30 Presence of Class A Indicator Taxa/7 0.43 Generic Richness Five Most Dominant Taxa 13 Relative Abundance - Oligochaeta 0.00 Rank Taxon Name Percent 15 Mean Abundance (Family 13.33 1 Chimarra 60.58 Functional Group) 2 Hydropsyche 15.06 16 Tanypodinae Mean Abundance 0.00 3 Simulium 8.45 (Family Functional Group) 4 Isonychia 3.54 17 Chironomini Abundance (Family 44.73 5 Polypedilum 2.20 Functional Group)

Report Printed: 10/6/2016 Contact: [email protected] or (207)287-7688 Page 1 Maine Department of Environmental Protection Biological Monitoring Program Aquatic Life Classification Attainment Report Station Number: S-1090 Town: Bradley Date Deployed: 7/17/2013 Log Number: 2448 Waterbody: Penobscot River - Station 1090 Date Retrieved: 8/19/2013 Sample Collection and Processing Information Sampling Organization: PENOBSCOT INDIAN NATION Taxonomist: MICHAEL WINNELL Waterbody Information - Deployment Waterbody Information - Retrieval Temperature: 28.2 deg C Temperature: 22.5 deg C Dissolved Oxygen: 7.72 mg/l Dissolved Oxygen: 8.3 mg/l Dissolved Oxygen Saturation: 99 % Dissolved Oxygen Saturation: 95.8 % Specific Conductance: 41.6 uS/cm Specific Conductance: 41.3 uS/cm Velocity: 68.9 cm/s Velocity: 89.3 cm/s pH: pH: Wetted Width: 100 m Wetted Width: 120 m Bankfull Width: 150 m Bankfull Width: 150 m Depth: 75 cm Depth: 125 cm Water Chemistry Summary of Habitat Characteristics Landuse Name Canopy Cover Terrain Upland Hardwood Open Rolling Urban Potential Stressor Location Substrate Urban Runoff Below Dam Boulder 10 % Below POTW Gravel 5 % Main Stem Rubble/Cobble 80 % Sand 5 % Landcover Summary - 2004 Data

Sample Comments ONE YEAR POST REMOVAL OF GREAT WORKS DAM ONE YEAR POST REMOVAL OF GREAT WORKS DAM; RECOVERED 2 BASKETS VIA SNORKELING ON 8/19, 3RD BASKET ON 8/20

Report Printed: 10/6/2016 Contact: [email protected] or (207)287-7688 Page 2 Maine Department of Environmental Protection Biological Monitoring Program Aquatic Life Taxonomic Inventory Report Station Number: S-1090 Waterbody: Penobscot River - Station 1090 Town: Bradley Log Number: 2448 Subsample Factor: X4 Replicates: 3 Calculated: 9/28/2016 Maine Count Hilsenhoff Functional Relative Taxonomic (Mean of Samplers) Biotic Feeding Abundance % Taxon Code Actual Adjusted Index Group Actual Adjusted Perlidae 09020209 1.33 -- 0.1 Acroneuria 09020209042 1.33 10.37 0 PR 0.1 0.5 Acroneuria lycorias 09020209042125 6.67 -- 0.3 Acroneuria evoluta 09020209042126 1.33 -- 0.1 Paragnetina 09020209049 2.96 1 PR 0.1 Paragnetina immarginata 09020209049149 1.33 -- 0.1 09020209049151 1.33 -- 0.1 Hagenius 09020302008 1.33 1 PR 0.1 Hagenius brevistylus 09020302008015 1.33 PR 0.1 Baetidae 09020401 8.00 -- 0.4 Baetis 09020401001 4.00 22.28 4 CG 0.2 1.1 Baetis flavistriga 09020401001004 2.67 -- 0.1 Baetis intercalaris 09020401001008 12.00 -- 0.6 Heterocloeon 09020401005 21.33 27.05 2 SC 1.0 1.3 Heterocloeon curiosum 09020401005020 1.33 -- 0.1 Heptageniidae 09020402 9.33 -- 0.5 Epeorus 09020402009 4.00 5.33 0 SC 0.2 0.3 Leucrocuta 09020402011 2.67 3.56 1 SC 0.1 0.2 Maccaffertium 09020402015 21.33 28.44 4 SC 1.0 1.4 Isonychia 09020404018 72.00 72.00 2 CF 3.5 3.5 Serratella 09020410037 2.67 2 CG 0.1 Serratella deficiens (Teloganopsis 09020410037121 2.67 -- 0.1 deficiens) Tricorythodes 09020411038 1.33 1.33 4 CG 0.1 0.1 Caenis 09020412040 2.67 2.67 7 CG 0.1 0.1 Chimarra 09020601003 401.33 1233.33 2 CF 19.7 60.6 Chimarra obscura 09020601003003 605.33 -- 29.7 Chimarra socia 09020601003004 226.67 -- 11.1 Neureclipsis 09020603008 6.67 6.67 7 CF 0.3 0.3 Cheumatopsyche 09020604015 29.33 29.33 5 CF 1.4 1.4 Hydropsyche 09020604016 17.33 306.67 4 CF 0.9 15.1 Hydropsyche bronta 09020604016029 6.67 -- 0.3 Hydropsyche morosa 09020604016030 24.00 -- 1.2 Hydropsyche sparna 09020604016032 18.67 -- 0.9 Hydropsyche phalerata 09020604016047 52.00 -- 2.6 Hydropsyche simulans 09020604016049 188.00 -- 9.2 Macrostemum 09020604018 12.00 3 CF 0.6 Macrostemum zebratum 09020604018054 12.00 -- 0.6 Report Printed: 10/6/2016 Contact: [email protected] or (207)287-7688 Page 3 Maine Department of Environmental Protection Biological Monitoring Program Aquatic Life Taxonomic Inventory Report Station Number: S-1090 Waterbody: Penobscot River - Station 1090 Town: Bradley Log Number: 2448 Subsample Factor: X4 Replicates: 3 Calculated: 9/28/2016 Maine Count Hilsenhoff Functional Relative Taxonomic (Mean of Samplers) Biotic Feeding Abundance % Taxon Code Actual Adjusted Index Group Actual Adjusted Lepidostoma 09020611064 6.67 6.67 1 SH 0.3 0.3 Helicopsyche 09020616070 1.33 3 SC 0.1 Helicopsyche borealis 09020616070137 1.33 -- 0.1 Corydalus 09020701002 5.33 6 PR 0.3 Corydalus cornutus 09020701002002 5.33 -- 0.3 Chironomidae 09021011 1.33 -- 0.1 Cardiocladius 09021011034 1.36 5 PR 0.1 Cardiocladius obscurus 09021011034053 1.33 -- 0.1 Nanocladius 09021011049 1.36 3 CG 0.1 Nanocladius downesi 09021011049092 1.33 -- 0.1 Orthocladius 09021011050 1.36 6 CG 0.1 Orthocladius carlatus 09021011050093 1.33 -- 0.1 Rheocricotopus 09021011057 2.71 6 CG 0.1 Rheocricotopus robacki 09021011057105 2.67 -- 0.1 Thienemanniella 09021011062 1.33 1.36 6 CG 0.1 0.1 Tvetenia 09021011065 28.47 5 CG 1.4 Tvetenia vitracies 09021011065113 28.00 -- 1.4 Rheotanytarsus 09021011072 6 CF Polypedilum 09021011102 44.73 6 SH 2.2 Polypedilum aviceps 09021011102181 25.33 -- 1.2 Polypedilum flavum 09021011102182 17.33 -- 0.9 Polypedilum ontario 09021011102194 1.33 -- 0.1 Simulium 09021012047 172.00 4 CF 8.4 Simulium fibrinflatum 09021012047059 25.33 -- 1.2 Simulium jenningsi species group 09021012047070 146.67 CF 7.2 Stenelmis 09021113070 1.33 5 SC 0.1 Stenelmis concinna 09021113070054 1.33 -- 0.1

Report Printed: 10/6/2016 Contact: [email protected] or (207)287-7688 Page 4