# on Trophic # on Trophic # on Trophic Figure Location Status Figure Location Status Figure Location Status 1 ALTON POND O 25 LOCUSTVILLE POND M 45 TRUSTOM P - OSPREY E 2 WALLUM LAKE * 26 WENSCOTT RESERVOIR M 46 TRUSTOM POND - OTTER E 3 LILY POND * 27 ASA POND M 47 RANDALL POND E 4 QUEEN R AT USQUEPAUGH O 28 SMITH & SAYLES RES M 48 WATERMAN LAKE E 5 CARR (WG) POND O 29 KEECH POND M 49 BARBER POND E 6 WHITE POND O 30 YAWGOO POND M 50 BELLEVILLE P - UPPER E 7 SCHOOLHOUSE P-LOWER * 31 SPRING GROVE POND M 51 CHAPMAN POND E 8 SPRING LAKE O 32 LITTLE POND E 52 SLACK'S RESERVOIR E 9 BEACH POND O 33 LONG (SK) POND E 53 SCOTT POND E 10 PASQUISETT POND O 34 MEADOWBROOK POND E 54 STAFFORD POND E 11 BREEZY LAKE (UPPER DAM) M 35 WORDEN POND E 55 ROUND POND E 12 SCHOOLHOUSE P-UPPER * 36 WATCHAUG POND E 56 MELVILLE POND - UPPER E 13 MISHNOCK LAKE M 37 TIOGUE LAKE E 57 BLACKAMORE POND E 14 SECRET LAKE M 38 BOONE LAKE E 58 WARWICK POND H 15 FLAT RIVER RESERVOIR M 39 TUCKER POND E 59 SPECTACLE POND H 16 DEEP POND * 40 QUICKSAND POND E 60 RWP #4 PLEASURE BRDG H 17 BELLEVILLE P - LOWER M 41 BLUE LAKE (CT) * 61 PRINCE’S POND H 18 PASCOAG RESERVOIR M 42 GORTON POND E 62 RWP #7 CUNLIFF LAKE H 19 SAND POND M 43 SILVER LAKE E 63 ALMY POND H 20 INDIAN LAKE M 44 LONG POND (LC) * 21 WASH POND M 22 HAWKINS POND M 23 WINCHECK POND M 24 GEORGIAVILLE POND M

See our factsheet on Algae in Aquatic Ecosystems at http://www.uri.edu/ce/wq/ww/Publications/Algae.pdf to learn more.

The Secchi Dipin website (http://dipin.kent.edu/tsi.htm) has a good explanation of the trophic state index.

Cyanobacteria blooms were documented in some of the lakes with chlorophyll concentrations in the eutrophic range in 2013. See our webpage on cyanobacteria (http://www.uri.edu/ce/wq/ww/Cyanobacteria.htm) to learn more. 80 Figure: RANK OF 2013 LAKES BY MEDIAN 75 CHLOROPHYLL TROPHIC STATUS (based on 1 meter concentrations) Hypereutrophic - 70 Very high algae

65

60 Eutrophic - Elevated algae

55

50 48 Mesotrophic - Moderate or 49 45 average algae 50 51

Trophic State Index (TSI) IndexState Trophic 40 52 53 35 54 55 30 56 57 Oligotrophic Low algae 58 25 59

20 60 61 62 Location number corresponds to table on previous page 63