Downstream Upstream
The biologically diverse stream segment is the component of the watershed, that under the normal range of conditions of consistentannual flow, alkaline buffering and stabilehabitat, a diverse community of uni / semivoltine taxa and other macroinvertebrates, are established and biologically productive, providing the building blocks of aquatic ecologic systems.
Diverse community of long-lived
macroinvertebrates
Biologically Diverse Biologically Variable Upland Spring Stream Segment Stream Segment and Seeps
Isers Run(Ideal/ATI Ref.)
Cranberry Run(WatershedReference)
OptimalWatershedReference(Average
of Ideal/ATI
ReferenceAnd
WatershedReference)
SP7
Each candidate site will be compared
to: 1. Past to Current2. “Non-Impaired”
Watershed Reference3. OptimalWatershedReference
4. Ideal/ATI Reference
SP9 LF10
“Tipping Point” for Laurel Falls Run
In the Headwaters, at Site SP7
Date pH Alk Acidity
(su) (mg/l) (mg/l)
6/21/2007 4.60 6.6 16.6
9/30/2009 4.70 5.0 17.0
12/19/2009 4.90 1.5 7.0
3/22/2010 4.80 1.8 9.0
6/23/2010 4.60 1.5 12.5
10/4/2010 4.50 0.5 13.3
Limestone sand dosing started
6/1/2011 6.30 6.0 5.2
10/15/2011 6.20 13.3 0.3
5/2/2012 6.80 9.3 6.8
12/20/2012 6.90 8.0 8.1
3/14/2013 6.90 8.9 -0.4
Total PRM 2ND Total
Taxa CRI- CRI- CRI- #
Date Richness ACD ACD ACD Indiv.
(> U/SV)(> U/SV)(>U/SV)
(FATI)(“”, PR)(“”, FFG)
(20) (10) (10)
12/5/2010 7 3 1 2 #15
41 8 15 CRI-ACD
Qual. Bio.
Score
12/8/2011 7 3 1 2 #32
36 8 14 CRI-ACD
QBS
- No major Qualitative change in
Indicators of Com. Reestablishment
compared to Historical Reference
- No change in Tot. Taxa Rich.
- No change in overall CRI-ACD Taxa
- No change in PRM-CRI-ACD of Pred. Taxa
- No change in 2nd-CRI-ACD of all other
Functional Feeding Group Taxa
Biotracker for Laurel Falls Run
In the Headwaters, at Site SP7
Total PRM 2ND Total
Taxa CRI- CRI- CRI- #
Date Richness ACD ACD ACD Indiv.
12/5/2010 7 3 1 2 #15
41 8 15 CRI-ACD
Site SP7 (before dz.) Qual. Bio.
- low taxa/abundance Score
12/8/2011 7 3 1 2 #32
36 8 14 CRI-ACD
Site SP7 (after dz.) QBS
- cont. low taxa/abundance after 1 year
12/5/2011 14 7 4 3 #74
62 18 22 CRI-ACD
(Expect? 8-14 4-7 2-4 3) QBS
Cranberry Run (“Non-impaired” Watershed Ref.)
(Expect? 15-18 8-10 4 4-6 #75-180)
(101+62)/2= CRI-ACD
81.5
QBS
Optimal Watershed Reference
10/10/2007 18 10 4 6 #180
101 27 35 CRI-ACD
QBS
Isers Run (Ideal/ATI Reference)
Isers Run(Ideal/ATI Ref.)
Cranberry Run(WatershedReference)
OptimalWatershedReference(Average
of Ideal/ATI
ReferenceAnd
WatershedReference)
SP7
Each candidate site will be compared
to: 1. Past to Current2. “Non-Impaired”
Watershed Reference3. OptimalWatershedReference
4. Ideal/ATI Reference
SP9 LF10
“Tipping Point” for Elklick Creek
mid-stream, at Site SP9
Date pH Alk Acidity
(su) (mg/l) (mg/l)
6/21/2007 4.60 6.0 32.0
4/8/2009 4.80 6.4 4.4
12/11/2009 5.10 1.8 57.7
3/22/2010 4.80 1.5 10.2
5/20/2010 4.90 2.0 14.5
10/4/2010 6.10 0.0 8.2
Limestone sand dosing started
8/2/2011 6.10 7.3 5.0
5/2/2012 6.60 7.5 6.0
9/11/2012 6.80 10.3 16.4
3/14/2013 6.50 6.0 1.2
Total PRM 2ND Total
Taxa CRI- CRI- CRI- #
Date Richness ACD ACD ACD Indiv
12/19/2007 3 2 1 1 #3
26 10 5 CRI-ACD
SCORE
12/5/2011 11 5 2 3 #38
65 17 22 CRI-ACD
SCORE
Total PRM 2ND Total
Taxa CRI- CRI- CRI- #
Date Richness ACD ACD ACD Indiv.
12/19/2007 3 2 1 1 #3
26 10 5 CRI-ACD
Site SP9 (before dz.) Qual. Bio.
- low taxa/abundance Score
12/8/2011 11 5 2 3 #38
65 17 22 CRI-ACD
Site SP9 (after dz.) QBS
- large improvement in taxa/abundance
(Expect? 15-18 8-10 4 4-6 #75-180)
(101+62)/2= CRI-ACD
81.5
QBS
Optimal Watershed Reference
10/10/2007 18 10 4 6 #180
101 27 35 CRI-ACD
QBS
Isers Run (Ideal/ATI Reference)
4/12/12 - No Fish
12/5/2011 14 7 4 3 #74
62 18 22 CRI-ACD
(Expect? 8-14 4-7 2-4 3) QBS
Cranberry Run (“Non-impaired” Watershed Ref.)
Biotracker for Laurel Falls Run
mid-stream, at Site SP9
7/24/13
- > 14 Brookies (3”)
(200-300 placed 5/26)
- 10 Blacknose Dace
Fish Survey Update
4/12/12
- 2 Stocked Brookies (7-8”)
- 8 Blacknose Dace
- 11 Creek Chub
- 3 Mottled Sculpin
- 4 White Suckers
Cranberry Run
SP9, mid-stream
Isers Run(Ideal/ATI Ref.)
Cranberry Run(WatershedReference)
OptimalWatershedReference(Average
of Ideal/ATI
ReferenceAnd
WatershedReference)
SP7
Each candidate site will be compared
to: 1. Past to Current2. “Non-Impaired”
Watershed Reference3. OptimalWatershedReference
4. Ideal/ATI Reference
SP9 LF10
“Tipping Point” for Laurel Falls Run
at the Mouth, at Site LF10
Date pH Alk Acidity
(su) (mg/l) (mg/l)
4/8/2009 5.20 7.2 4.8
4/18/2010 5.50 0.4 7.6
Limestone sand dosing started
11/8/2010 6.80 16.6 -2.8
4/29/2011 6.20 11.2 3.0
12/5/2011 6.90 12.0 -4.8
4/12/2012 7.00 12.6 -5.8
12/3/2012 7.00 6.6 -14.8
Total PRM 2ND Total
Taxa CRI- CRI- CRI- #
Date Richness ACD ACD ACD Indiv
11/8/2010 8 5 2 3 #9
50 9 22 CRI-ACD
12/5/2011 14 9 4 5 #41
98 26 38 CRI-ACD
SCORE
Total PRM 2ND Total
Taxa CRI- CRI- CRI- #
Date Richness ACD ACD ACD Indiv.
11/8/2010 8 5 2 3 #9
50 9 22 CRI-ACD
Site LF10 (before dz.) Qual. Bio.
- low taxa/abundance Score
12/5/2011 14 9 4 5 #41
98 26 38 CRI-ACD
Site LF10 (after dz.) QBS
- large improvement in taxa and abundance
(Expect? 15-18 8-10 4 4-6 #75-180
(101+62)/2= CRI-ACD
81.5
QBS
Optimal Watershed Reference
10/10/2007 18 10 4 6 #180
101 27 35 CRI-ACD
QBS
Isers Run (Ideal/ATI Reference)
4/12/12
- Stocked Brookie (10”)
- 11 Creek Chub
12/5/2011 14 7 4 3 #74
62 18 22 CRI-ACD
(Expect? 8-14 4-7 2-4 3) QBS
Cranberry Run (“Non-impaired” Watershed Ref.)
Biotracker for Laurel Falls Run
upstream of mouth, at Site LF10
7/24/13
- 23 Blacknose Dace
- 1 Bluegill- 1 Common Shiner
- 39 Creek Chub
- 13 Mottled Sculpin
- 1 Perch- 4 White Suckers
Fish Survey Update
4/12/12
- 2 Stocked Brookies (7-8”)
- 8 Blacknose Dace
- 11 Creek Chub
- 3 Mottled Sculpin
- 4 White Suckers
Cranberry Run
LF10 - mouth