Ph River, Brook and Tributary Sites the Normal Ph Range For
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2016 Parameter Data: pH River, Brook and Tributary Sites The standard measurement of acidity is pH. A pH of less than 7 is acidic; above pH 7 is alkaline, also known by the term “basic.” The pH measurement is a logarithmic measurement, which means that each unit decrease in pH equals a ten-fold increase in acidity. In other words, pH 5 water is ten times more acidic than pH 6 water. Aquatic organisms need the pH of their water body to be within a certain range for optimal growth and survival. Although each organism has an ideal pH, most aquatic organisms prefer pH of 6.5 – 8.0. Watershed LOCATION MAY JUNE JULY AUG. SEPT. OCT. Miniumum Code RIVERS - - - - - - Standard pH units - - - - - - A Annaquatucket River - 7.2 6.9 6.6 6.8 6.9 6.7 6.6 Belleville @ Railroad Crossing WD Ashaway River @ Rte 216 6.8 6.6 6.5 6.8 7.1 6.8 6.5 WD Beaver River @ Rte 138 6.3 6.5 6.6 6.8 6.3 6.1 6.1 NA Buckeye Brook #1 @ Novelty Rd 7.0 7.2 6.5 7.2 6.9 7.0 6.5 NA Buckeye Brk #2 @ Lockwood Brk - 6.7 6.9 6.8 - - 6.7 NA Buckeye Brk #3 @ Warner Brook 6.7 6.5 6.4 6.5 6.5 - 6.4 NA Buckeye Brook #4 @ Mill Cove 6.9 7.0 6.4 7.0 7.0 - 6.4 WD Falls River D - Step Stone Falls 6.4 6.4 6.6 6.5 6.6 6.3 6.3 WD Falls River C - Austin Farm Rd. 6.6 6.7 6.6 6.7 6.8 6.5 6.5 WD Falls River A - Twin Bridges 6.5 6.6 6.5 6.4 6.5 6.1 6.1 WD Green Falls River @ Rte 184 (Exit 93) 6.8 6.6 6.6 6.8 6.9 6.8 6.6 A Himes River @ Hideaway Lane 6.8 - 7.2 7.3 7.3 6.4 6.4 H HW1A - Scrabbletown Brk @ Falls 6.6 6.7 7.2 6.8 6.6 6.9 6.6 H HW1B - Scrabbletown @ Rt 4 Bridge 6.7 6.7 7.2 7.0 6.8 6.6 6.6 H HW 4 - Davis Memorial 6.3 - 6.7 - - - 6.3 H HW5 - Sandhill Brook (Saw Mill Inlet) 6.3 6.7 6.4 6.5 6.6 6.4 6.3 H HW6 - Hunt River @ Forge Rd. 6.8 6.4 6.6 - 6.8 6.5 6.4 TH Moosup River - Upstream 6.4 6.5 6.4 6.4 6.8 6.1 6.1 TH Moosup River A - Fairbanks 6.5 6.5 6.4 6.4 6.4 6.2 6.2 WD Pasquisett Brook @ Rte 2 6.4 6.1 6.2 6.2 6.1 6.3 6.1 WD Pawcatuck River @ Rte 91 6.7 6.6 6.5 6.7 6.8 6.4 6.4 WD Pawcatuck River - Bradford 0.5m 6.5 6.7 6.6 7.0 6.3 6.7 6.3 WD Pawcatuck R - Upstream of Boombridge6.3 6.6 6.9 7.1 6.9 6.6 6.3 PA Pawtuxet River near Rhodes 6.9 6.9 6.5 7.1 7.2 6.9 6.5 WD Pendelton Hill Brk @ Grindstone Rd 6.7 6.6 6.4 6.5 - 6.4 6.4 WD Queen River @ Mail Rd 6.5 6.4 6.4 6.6 6.5 6.5 6.4 WD Queen River @ Sherman Brook 6.3 6.7 6.6 6.5 6.6 6.0 6.0 The normal pH range for freshwater sites is between 6.5 and 8 pH units 2016 2016 Parameter Data: pH River, Brook and Tributary Sites Watershed LOCATION MAY JUNE JULY AUG. SEPT. OCT. Miniumum Code RIVERS (continued) - - - - - - Standard pH units - - - - - - WD Shickasheen Brook @ Rte 2 5.7 5.6 DRY DRY DRY DRY 5.6 WD Shickasheen Brk @ Miskiania Rd 6.9 6.9 6.9 6.7 6.6 6.5 6.5 WD Shickasheen Brook @ Barber P Outlet6.7 6.6 6.8 6.5 6.5 6.6 6.5 WD Shickasheen Brook @ Rte 138 6.4 6.2 6.4 6.5 - 6.0 6.0 WD Shickasheen Brk @ Liberty Lane 6.4 6.3 6.2 6.5 6.4 6.2 6.2 WD Shunock River @ Hewitt 6.5 6.4 6.6 6.7 6.6 6.2 6.2 TE White Horn Brook @ Ministerial 6.5 6.4 6.5 6.4 6.6 6.2 6.2 WD Wood River @ Switch Rd 6.8 6.5 6.8 7.1 6.8 6.4 6.4 WO Woonasquatucket @ Greystone 6.8 7.0 7.0 7.3 7.4 6.8 6.8 WO Woonasquatucket @ Donigian 7.2 7.3 7.1 7.5 7.5 7.2 7.1 WO Woonasq @ Waterplace Prk 7.1 7.2 7.1 7.3 7.3 7.3 7.1 Watershed LOCATION MAY JUNE JULY AUG. SEPT. OCT. Miniumum Code TRIBUTARIES (WPWA tribs below) - - - - - - Standard pH units - - - - - - WD Barber - Mud Brook 6.0 6.0 6.0 5.9 6.0 5.8 5.8 WO Geoville Pond @ Capron Pond - - 6.7 - 7.1 6.7 6.7 WO Geoville Pond @ Harris Brook - - 6.5 - 6.9 6.7 6.5 A Secret - Oak Hill East 6.9 - 6.7 - - 6.7 6.7 A Secret - Trib @ Shore Dr. 6.4 - 6.5 - - 6.3 6.3 WO Slack's Tributary B (western cove) - 7.4 - 7.0 6.9 6.6 6.6 WO Slack's Tributary C (SW cove) - 7.1 - 6.9 7.0 6.6 6.6 B Smith & Sayles @ Balcom Brk - 6.5 6.5 - 6.9 - 6.5 B Smith & Sayles @ Keech Brk - 6.4 6.5 - - - 6.4 TA Stafford Pond - NE Cove - 7.0 6.8 6.8 - - 6.8 WD Watchaug - Perry Healy Brook 6.1 - 6.4 - 6.6 6.1 6.1 WO Waterman @ Rte 44 (Nine Foot Brk) 6.3 - 6.5 - - 6.0 6.0 WO Waterman @ Saw Mill (Cutler Brook) 6.9 - 6.6 - - 6.3 6.3 Watershed LOCATION MAY JUNE JULY AUG. SEPT. OCT. Miniumum Code WPWA - TRIBUTARIES - - - - - - Standard pH units - - - - - - WD Chipuxet River @ Rte 138 6.3 6.3 6.5 6.1 6.4 6.5 6.1 WD P’tuck River @ Biscuit City Rd 6.3 6.2 6.2 6.2 6.2 6.1 6.1 WD P’tuck below Kenyon Ind. 6.5 6.5 6.6 6.8 6.8 6.3 6.3 WD P’tuck River @ Burdickville Rd 6.6 6.9 6.6 6.9 7.0 6.4 6.4 WD P’tuck River @ Potter Hill 6.7 6.6 6.7 7.0 7.3 6.7 6.6 WD Pendelton Hill Brk Rtes 49/216 6.7 6.6 6.6 6.7 6.9 6.2 6.2 WD Shunock River @ Rte 49 7.0 6.9 7.5 7.0 - 6.8 6.8 WD Shunock River @ Rte 184 6.9 6.7 6.7 6.8 6.9 6.8 6.7 WD White Brook Inlet @ Pine Hill Rd 6.5 6.5 6.5 6.6 6.5 6.6 6.5 WD Usquepaugh River @ Rte 2 6.4 6.3 6.3 6.4 6.6 6.4 6.3 The normal pH range for freshwater sites is between 6.5 and 8 pH units 2016.