Category: Rock Run
Rock Run Water Tests 12.2.23
Recent rains have pumped up the volume of Rock Run on this Saturday, the final water test of 2023.
Air Temp – 53° F
Water Temp – 45.5° F
pH – 6.9
Alkalinity – 6.1
Linn Run Discharge – 16.1 ft³/sec
Linn Run Gauge Height – 1.98′
pH and alkalinity averages are down slightly from 2022, but considering a pH reading of 4.7 was recorded at this loctation in 2005 we can rest assured our limestone sand project has had a overall positive impact on the stream.
Rock Run Water Tests 10.28.23
Water tests at the mouth of Rock Run were done on what may be the last “nice” Saturday of the year.
Air temp was 63° F
Water Temp – 55.5° F
pH – 7.1
Alkalinity – 10.0
Linn Run Gauge – 1.9 ft
Linn Run Discharge – 9.65 ft³/sec
Rock Run Water Tests 9.30.23
Here’s the results of water tests at the mouth of Rock Run.
Air Temperature: 59°F
Water Temperature: 56.5°F
Linn Run Gauge: 1.64′
Linn Run Discharge: 3.68 ft.³/sec
pH: 6.9
Alkalinity: 9.2
Flow: Low/Clear
The streams had decent flow, but we could use some rain to allow trout to move upstream to spawn.
Rock Run Water Tests 8-31-23
Here’s the water test results for August 31, 2023:
Air Temperature: 68°F
Water Temperature: 60.5°F
Linn Run Gauge: 1.85′
Linn Run Dischrge: 9.65 ft³/sec
pH: 7.1
Alkalinity: 8.2
Rock Run Water Tests 7.29.23
Citizen Scientists were met with a downpour for monthly water tests at the mouth of Rock Run on July 29. The (much welcome) rain forced a quick sample collection and tests conducted in the pavilion at Adams Falls.
The results:
Air Temperature: 68°F
Water Temperature: 63.5°F
pH: 7.0
Alkalinity: 6.7
Linn Run Gauge: 1.85′
Linn Run Flow: 9.65 ft³/sec
Despite the hottest day of summer on the previous day, Rock Run flows at a trout healthy 63.5 degrees.
Rock Run Water Tests For June
Monthly water tests were conducted at the mouth of Rock Run on Saturday, June 3.
Water Temperature – 57.5°F
Air Temperature – 66°F
pH – 7.2
Alkalinity – 6.1
Linn Run Gauge – 1.65′
Linn Run Discharge – 3.54 ft³/sec
Hot, dry weather has come early to the Laurel Highlands this year, however, there was a lower flow recorded in June of 2020 when the Linn Run gauge was at 1.42′. Some rain would be nice though.
Rock Run Water Tests 4-29-23
Here’s the results of water quality tests at the mouth of Rock Run on April 29, 2023.
Air Temperature: 54°
Water Temperature: 48°
Linn Run Gauge: 1.97′
Linn Run Discharge: 15.5 ft³/sec
pH: 7.45
Alkalinity: 5.0
Rock Run Water Test Results April 2023
Here’s the results of water quality tests at the mouth of Rock Run
on April 2, 2023.
Air temp: 30°F
Water temp: 41°F
Linn Run Discharge: 20.6 ft³/sec
Linn Run Gauge: 2.09
pH: 7.7
Alkalinity: 3.3
Flow: med/high and clear
Rock Run Water Tests March 2023
Monthly Rock Run Water Tests 2-25-23
It was a cold morning as the FTTU citizen scientists conducted monthly pH and alkalinity tests with frozen hands.
We arrived to find even more trees and branches down over the stream.
Air Temp – 28° F
Water Temp – 37.5° F
pH – 7.3
Alkalinity – 3.4
Linn Run Discharge – 21.1 ft³/sec – Medium High
Rock Run Water Tests February 2023
“If a tree falls in the forest, and no-one is there to hear, does it make a sound?”
The answer is “Yes”, and a pretty loud one too when this one came crashing down roots and all across Rock Run, probably during high winds from the storm on 1/25/23.
Results of water tests 1/29/23
Water Temperature: 38.5°
Air Temperature: 38°
pH: 7.8
Alkalinity: 3.8
Linn Run Gauge: 1.94′
