NC0090000_Report_20240719

s
July 19, 2024
Via Email Delivery
50 International Dr. T 864.281.0030
Suite 150 TRCcompanies.com
Greenville, SC 29615
Ms. Brandy Costner
North Carolina Department of Environmental Quality
Division of Water Resources — Mooresville Regional Office
610 East Center Avenue, Suite 301
Mooresville, NC 28115
Re: 2024 Annual Biological Integrity Monitoring Report
Colonial Pipeline Company — 2020-L1-SR2448 / Pipeline ROW Release
NPDES Permit No. NC0090000
Huntersville, Mecklenburg County, North Carolina 28078
To Whom it May Concern,
Wa, S
MOORESViLLE REGIONAL OFFICE
As required by National Pollution Discharge Elimination System (NPDES) Permit No. NC0090000, Section A.S.d
effective August 1, 2023, TRC Environmental Corporation (TRC) is submitting this Annual Biological Integrity
Report forthe 2024 calendar year in connection with the Huntersville-Concord Road (State Road 2448 [SR 2448])
pipeline release located in Huntersville, Mecklenburg County, North Carolina on behalf of Colonial Pipeline
Company (Colonial). At the time of this submittal, the water treatment plant has not been constructed and no
discharge has occurred; therefore, this report will serve as documentation of baseline conditions. As required by
Section A.(5.)(b.), Colonial will conduct the next annual biological integrity sampling event prior to June 1, 2025
and submit the 2025 annual report within 60 days of the sampling event.
If you have any questions or concerns regarding the attached 2024 Annual Biological Integrity Monitoring
Report, please do not hesitate to contact Jeff Morrison with Colonial Pipeline at (770).819.3566.
Respectfully,
Chelsea Macionus
TRC

RE E I VE WN CE7 :.Q DVYPI
JUI
t'a' xis:, s
MOORESViLLE REGIONAIL OFFICE
Predischarge Baseline Event
Colonial Pipeline Company (CPC)
NPDES Permit NCO090000
'luntersville, Mecklenburg County, North Carolina
Heather Smith
Senior Biological Scientist
Prepared by:
TRC Environmental Corporation
50 International Drive, Suite 150
Greenville, SC 29615
July 2024
K ren C. Saucier, Ph.D.
Vice -President, Senior Consultant
TRC Environmental Corporation I Colonial Pipeline Company
NPDES Biological Integrity Study Report
� EMPLOYEES.ROOTLOCAL�ENV�ECC�GREENVILLE�WPGVL�PJT2�568543�0000�RS685430000-002 NPDES 81 REPORTDOCK
50 W. R ATONa_ DRIVE, SUIT E 150, GR ENW Lc; Si 29610, a 864.281.0030 PHONE [phone] F; x WIMV3 RC OMPA,NIES. 0M

Table of
Contents
Section1 Introduction.................................................................................................................................. 1
Section 2 In -Stream Assessment of Biological Integrity............................................................................... 3
2.1 Sampling Approach and Locations........................................................................................... 3
2.2 Sampling Methods................................................................................................................... 3
2.3 Laboratory Methods................................................................................................................ 4
Section 3 Results and Discussion.................................................................................................................. 6
Section4 References..................................................................................................................................... 8
List of Tables
Table1 Water Quality Data..................................................................................................... 7
Table 2 Macroinvertebrate Metrics......................................................................................... 7
List of Figures
Figure1 Site Location Map....................................................................................................... 2
Figure2 Sample Location Map.................................................................................................. 5
List of Appendices
Appendix A MBI Report
TRC Environmental Corporation / Colonial Pipeline Company i
NPDES Biological Integrity Study July 2024
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•
The Colonial Pipeline Company (CPC) was issued National Pollutant Discharge System (NPDES) Permit
NCO090000 associated with the 2020-L1-SR2448 Release Site located near Huntersville, Mecklenburg
County, North Carolina (the Site). NPDES Permit NCO090000 addresses a planned discharge from a
watertreatment facility to be installed at the Site. CPC is required to perform in -stream biological
integrity assessments consistent with Permit Condition A. (5.) of the NPDES Permit. The Site is situated
on both sides of Huntersville-Concord Road (State Road 2448 [SR 2448]) as shown in Figure 1. CPC
contracted TRC Environmental Corporation (TRC) to develop the Biological Integrity Study Plan in
support of Permit Condition A. (5.) of NPDES Permit NC0090000. The Biological Integrity Study Plan was
submitted by CPC to North Carolina Department of Environmental Quality (NCDEQ) - Division of Water
Resources on October 31, 2023. This report documents the methods and results of the pre -discharge
baseline sampling event which occurred on May 20, 2024.
The area within a 1,500-foot radius of the Site is a mixture of low -density residential properties,
agricultural properties, and wooded land. The Site is located within the Yadkin Pee -Dee River Basin.
North Prong Clarke Creek is located approximately 1,800 feet north of the Site and South Prong Clarke
Creek is located approximately 2,700 feet south of the Site, both of which are characterized by the
NCDEQ Division of Water Quality as Class C water bodies, meaning that they are protected for non -
drinking water purposes such as biological integrity, fishing, and infrequent secondary recreational
purposes (i.e., wading).
Mecklenburg County is located within the Piedmont physiographic province, characterized by rolling
hills and moderately steep valleys formed by stream erosion of upland areas. Elevations at the Site
range from approximately 650 to 750 feet above mean sea level. The surficial soils at the Site consist
almost entirely of fine-grained clayey to silty saprolite developed from the weathering of the underlying
bedrock. The soil thickness ranges from a few feet to greater than 100 feet. Data obtained from
completed borings indicate the Site is underlain by quartz diorite.
TRC Environmental Corporation / Colonial Pipeline Company 1
NPDES Biological Integrity Study July 2024
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Permit Condition A. (5.) to the NPDES Permit NCO090000 requires an annual instream assessment of
biological integrity. The NCDEQ Full Scale method was used to determine bioclassifications and water
quality ratings. This method is typically used for most between -site and/or between -date comparisons
(NCDEQ 2016).
2.1 Sampling Approach and Locations
On May 20, 2024, TRC's biologist along with their subcontracted NCDEQ Certified Laboratory for Aquatic
Population Studies of Benthic Macroinvertebrates certified biologist conducted two Full -Scale benthic
macroinvertebrate surveys at two sampling locations —an Upstream Reference Site and a Downstream
Experimental Site. The sampling locations share similar riparian and geomorphological characteristics,
such as substrate composition and incised stream channel. The watersheds for the Upstream Reference
Site and the Downstream Experimental Site are comparable in that both watersheds are approximately
3 square miles in area and composed of forested lands, developed lands, agricultural lands, and
impervious surfaces (USGS StreamStatsl). The macroinvertebrate sampling locations for the pre-
discharge baseline sampling event are shown on Figure 2.
NCDEQ requires that North Carolina certified biologists implement the biological integrity assessment
program. TRC subcontracted a North Carolina certified biologist from Michael Baker International (MBI)
in Asheville, North Carolina to support preparation and implementation of the biological integrity
assessment program.
CPC notified the supervisor for the Biological Assessment Branch, Water Sciences Section 30-days prior
to performing the pre -discharge baseline sampling event.
2.2 Sampling Methods
TRC and MBI assessed in -stream and riparian habitat conditions at each of the sampling locations
consistent with the work plan developed for the Site. Metrics were used to generate a habitat score for
each sampling location and are included in Appendix A. Metrics include instream habitat, substrate
composition, pool variety, riffle habitat, bank stability and vegetation, light penetration, and riparian
vegetation zone width. Water quality parameters were collected at each sampling location with a
calibrated YSI style meter.
The macroinvertebrate samples were collected according to the specifications outlined in the 2016
NCDEQ Standard Operating Procedures for the Collection and Analysis of Benthic Macroinvertebrates,
TRC Environmental Corporation ( Colonial Pipeline Company 3
NPDES Biological Integrity Study July 2024
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which provides detailed standard operating procedures for the collection and analysis of freshwater
benthic macroinvertebrate data that can help determine bioclassification ratings (NCDEQ 2016).
The techniques used to assess the macroinvertebrate community included two riffle kicks, three sweeps,
one leaf -pack, two rock -and log -washes, one sand grab, and visual observations. To minimize the
amount of stirred -up sediment washing downstream and potential disturbance to macroinvertebrates,
sampling was initiated at the most downstream point of each reach with scientists traveling upstream to
the reference macroinvertebrate sampling location.
The riffle -kick method uses kicknets or D-frame nets, and substrate is surveyed for approximately two
meters. The kick -nets are placed perpendicular to the streambed and sediment is disturbed on the
upstream side of the kick -net so the disturbed contents wash into the net. The sweep collection method
requires a sweep net to be used to sample locations such as undercut banks, root mats and aquatic
vegetation. The leaf -pack collection method requires the collection of a leaf -pack, which should target
deciduous material when possible. The leaf -pack is collected and then the collected material is washed
and ultimately poured over a sieve bucket. The rock- and log -wash collection method requires larger
substrate material to be collected and then washed into a plastic container where the remaining
material is then poured through a fine -mesh sampler. The sand collection method specifically targets
macroinvertebrates that live in the sand. For the sand collection method, a kicknet was placed
downstream of the sand substrate to be sampled and sediment will be disturbed, and the disturbed
material will be collected in the kicknet. The visual method requires the sampling team make visual
inspections of the sampling locations mainly targeting larger macroinvertebrates (NCDEQ 2016). Any
larger macroinvertebrates were placed into a vial containing 70 percent ethanol. The remaining
contents from each Full -Scale sampling method was placed into a labeled container and preserved in 70
percent ethanol. The preserved samples were transferred to MBI's Asheville, NC based lab for
processing.
2.3 Laboratory Methods
After arrival at the lab, the contents of each sample were sorted to separate macroinvertebrates from
the organic material. Sorting was conducted under a dissecting microscope. Sorted macroinvertebrates
were preserved in 70 percent ethanol and identified to the lowest practical taxonomic level.
TRC Environmental Corporation ( Colonial Pipeline Company 4
NPDES Biological Integrity Study July 2024
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Water quality data including Dissolved Oxygen (DO), pH, specific conductivity, and temperature were
collected at both locations using a calibrated YSI 556 MPS meter. Water quality parameters are
summarized in Table 1. Each water quality parameter was comparable at the upstream and
downstream locations.
Habitat within the Upstream Reference Site and Downstream Experimental Site was evaluated using the
Habitat Assessment Field Data Sheet for Mountain/Piedmont Streams. Appendix A contains the
assessment data sheets. The Upstream Reference Site is located within an area of heavy residential
development within the watershed. The reach sampled consists of a coarse sand substrate and deeply
incised banks. Large woody debris was present within the reach. Leaf packs, rocks, and bank habitat
were limited within the reach. The uniform habitat present in the upstream reach along with the sandy
substrate resulted in a Habitat Assessment Field Data Sheet for Mountain/Piedmont Streams total score
of 38. The Downstream Experimental Site contains coarse sandy substrate and provides undercut
habitat along the left bank along with a deeply incised right bank. One cobble riffle was observed in the
Downstream Experimental Site which resulted in a total habitat score of 49.
The macroinvertebrate data collected was used to calculate tolerance values and compared with the
North Carolina biotic index. Tolerance values are a macro invertebrate index that refers to the pollution
tolerance levels of each macroinvertebrate taxon. The North Carolina Biotic Index (NCBI) is modeled
after the Hilsenhoff Biotic Index (Hilsenhoff 1987, 1988) and is a given sample's weighted average of
tolerance values for the macroinvertebrate species identified with respect to their abundance
(NCDEQ 2016). Table 2 summarizes benthic macroinvertebrate metrics calculated for each location.
The Downstream Experimental Site resulted in higher diversity and abundance when compared to the
upstream location. The Ephemeroptera, Plecoptera and Trichoptera (EPT) taxa richness score was higher
at the Downstream Experimental Site. These taxa are widely utilized as one measure of water quality
indicators because the richness and abundance of these organisms can be affected by a wide range of
environmental and water quality stressors. The Downstream Experimental Site scored a slightly lower
NCBI value, scaled from 0.0 to 10.0, where lower values indicate more pristine conditions and higher
values indicating stress. These differences may be attributable to the greater habitat diversity present
at the Downstream Experimental Site. Seasonal adjustment corrections are typically applied for select
species when sampling occurs outside of the summer sampling dates. The adjustment factors were not
applied to the Site data, as none of the taxa collected require application of the adjustment factor.
TRC Environmental Corporation l Colonial Pipeline Company 6
NPDES Biological Integrity Study July 2024
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Hilsenhoff, W. L. 1987. Rapid field assessment of organic pollution with a family -level biotic index.
Journal of the North American Benthological Society, 7(1), 65-68.
Hilsenhoff, W. L. 1998. A modification of the biotic index of organic stream pollution to remedy
problems and permit its use throughout the year. The Great Lakes Entomologist, 31(1), 1.
North Carolina Department of Environmental Quality, Division of Water Resources, Water Sciences
Section, Biological Assessment Branch, 2016. Standard Operating Procedures for the Collection
and Analysis of Benthic Macroinvertebrates (Version 5).
TRC Environmental Corporation / Colonial Pipeline Company 8
NPDES Biological Integrity Study July 2024
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Report
MBI
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NPDES Biological Integrity Study July 2024
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INTERNATIONAL
July 5, 2024
Colonial Pipeline Company
NPDES Permit NCO090000
2024 Benthic Macroinvertebrate Monitoring Report
Annual Instream Assessment of Biological Integrity Study
The Colonial Pipeline Company (CPC) Huntersville-Concord Road (State Road 2448 [SR 2448]) pipeline site is located
near Huntersville, Mecklenburg County, North Carolina (the Site). The CPC pipelines cross SR 2448 (Figure 1).
The area within a 1,500-foot radius of the Site is a mixture of low -density residential properties, agricultural
properties, and wooded land. The Site is located within the Yadkin Pee -Dee River Basin. North Prong Clarke Creek is
located approximately 1,800 feet north of the Site and South Prong Clarke Creek is located approximately 2,700 feet
south of the Site, both of which are characterized by the NCDEQ Division of Water Quality as Class C water bodies,
meaning that they are protected for non -drinking water purposes such as biological integrity, fishing, and infrequent
secondary recreational purposes (i.e., wading).
Mecklenburg County is located within the Piedmont physiographic province, characterized by rolling hills and
moderately steep valleys formed by stream erosion of upland areas. Elevations at the Site range from approximately
650 to 750 feet above mean sea level. The surficial soils at the Site consist almost entirely of fine-grained clayey to
silty saprolite developed from the weathering of the underlying bedrock. The soil thickness ranges from a few feet to
greater than 100 feet. Data obtained from completed borings indicate the Site is underlain by quartz diorite.
Requirements:
TRC Companies (TRC) enlisted Michael Baker International (MBI) to design an Annual Instream Assessment of
Biological Integrity Study Plan in the North Prong of Clark Creek in Mecklenburg County, North Carolina. MBI operates
a NC Division of Environmental Quality (DEQ) Certified Laboratory for Aquatic Population Studies of Benthic
Macroinvertebrates (Certificate #044). The study plan and annual survey are required for compliance with the terms
of Colonial Pipeline Company's NPDES Permit NCO090000 Section A. (5.) Instream Assessment of Biological Integrity
(Annual). This NPDES Permit is associated with a proposed discharge (Outfall 001) into the North Prong of Clark Creek
where the creek crosses under Huntersville — Concord Rd. at approximately 35.420216,-80.797979.
On May 20, 2024, MBI staff Jason York and Brent Stoltz, along with TRC employee James Treacy
conducted two Full -Scale benthic macroinvertebrate samples on the North Fork of Clark Creek in
accordance with the approved Annual Instream Assessment of Biological Integrity Study Plan. The Full -
Scale sampling method includes':
o Two riffle -kicks
• Three sweeps
'- NC Department of Environmental Quality. 2016. Standard Operating Procedures for the Collection and Analysis of Benthic
Macroinvertebrates. Division of Water Resources. Raleigh, North Carolina. February 2016.

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INTERNATIONAL.
• One leaf -pack
• Two rock and log washes
• One sand
« Visual
Water quality data including Dissolved Oxygen (DO), pH, Specific conductivity, and temperature were
collected at both locations using a calibrated YSI 556 MPS meterfrom Field Environmental Instruments,
Inc. and is shown in Table 1 of the Discussion section of this report. A taxa list for each site is included
in Appendix A.
Site Descriptions:
The Upstream Reference Site is located at approximately 35.419315,-80.806036 and was accessed
through private property at the end of Ewart Rd. Heavy residential development exists in the
watershed upstream. The sampled reach is deeply incised with the substrate consisting almost entirely
of course sand. Large woody debris was frequent; however, leaf packs, rocks, and bank habitat were
limited. Due to a severe lack of colonizable habitat and an almost completely uniform sand substrate,
the Habitat Assessment Field Data Sheet for Mountain/Piedmont Streams Total Score was 38.
Reference location facing downstream.

We Make a Difference
INTERNATIONAL.
The Downstream Experimental Site is located at approximately 35.419590,-80.797398 and was
accessed through private property immediately past the Huntersvilie-Concord Rd bridged crossing of
the North Prong of Clark Creek. The sampled reach was deeply incised on the right bank. The left bank
did provide some undercut habitat; however, woody debris and leaf packs were limited. One cobble
riffle was present although the substrate was dominated by coarse sand. Due to the presence of this
riffle the Total Score for the Habitat Assessment Field Data Sheet for Mountain Piedmont Streams at
this site was 49.
Experimental site facing downstream.
Discussion:
Experimental site facing upstream.
Physicochemical water quality parameters between the Upstream Reference site and the Downstream Experimental
site showed minimal difference (See Table 1); however, benthic macroinvertebrate metrics at the Downstream
Experimental site showed higher diversity and abundance which is summarized in Table 2 and shown visually in Figure
2. The Downstream Experimental site also scored a lower NC Biotic Index value, scaled from 0.0 to 10.0, where lower
values indicate more pristine conditions and higher values indicating stress. These differences can be most likely
explained by greater available habitat at the Downstream Experimental location which included a rocky riffle and
undercut banks that were not available at the Upstream Reference location. Bioclassifications were assigned to each
site based on "Table 5. Thresholds for determining BI and EPT scores using Full Scale criteria" from the 2016 NC DEQ
Standard Operating Procedures for the Collection and Analysis of Benthic Macroinvertebrates (2016 SOP). Seasonal

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Release Site
BASE MAP: USGS TOPOGRAPHIC ON1NE SERVICE.
DATA SOURCES'. TRC, ESRI, USGS
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PROJECT COLONIAL PIPELINE COMPANY
2020-L1-SR2448 RELEASE
HUNTERSVILLE, NC
TITLE
SITE LOCATION MAP
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CRECKEO BY R. SPRING
APPBOVEO BY B. FEUERSTEIN FIGURE 1
GATE: OC TOBER 2023
TIRC 1429 ROCK QUARRY ROAD
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® RALEIGH, NC 27610
PHONE: 9 19,838, 9661

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corrections did not need to be applied to the data despite the collection date of May 20th, which falls outside of the
summer sampling season of June 1st — September 30th, as only one P|ecoptera taxa (Perlesto sppj was collected
which is not included on the list of taxa used in seasonal adjustments (Table 4. 2016 SOP).
TABLE 1: WATER QUALITY DATA
SPECIFIC
SITE
DISSOLVED
PH
CONDUCTIVITY
TEMPERATURE
REFERENCE
TABLE 2: MACRO[ NVERTEBRATE
METRICS
Quantitative)
Richness
Richness
(TV!53)
SCORE
SCORE
DECISION
UPSTREAM
DOWNSTREAM
NCB!"'Semi-Quantitative)
EP� Richness of =6
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North Prong Clark Creek Upstream Reference Location
FINALID
ORDER
FAMILY
GENUS
SPECIES
TOLERANCE
COUNT
ACR
notes
Boetis intercalaris
Ephemeroptera
Baetidae
Boetis
intercalaris
5
11
A
Ploudituscestus
Ephemeroptera
Baetidae
Plauditus
cestus
4.6
1
R
Moccaffertium modestum
Ephemeroptera
Heptageniidae
Moccaffertium
modestum
5.7
2
R
Poracloeodesspp
Ephemeroptera
Baetidae
Paractoeodes
spp
8
1
R
Hydropsyche (C.) sporno
Trichoptera
Hydropsychidae
Hydropsyche
(C.) sporna
2.5
3
C
Cheumatopsyche spp
Trichoptera
Hydropsychidae
Cheumatopsyche
spp
6.61
28
A
Ischnuraspp
Odonata
Coenagrionidae
Ischnura
spp
9.5
1
R
Calopteryxspp
Odonata
Calopterygidae
Colopteryx
spp
7.5
2
R
Progomphus spp
Odonata
Gomphidae
Progomphus
spp
8.2
2
R
obscurus
Boyeria vinoso
Odonata
Aeshnidae
Boyeria
vinosa
5.8
1
R
Rhagovelia t
Hemiptera
Veliidae
Rhagovelia
spp
8
C
Tipula spp
Diptera
Tipulidae
Tipula
spp
7.5
13
A
Simuliumspp
Diptera
Simuliidae
Simulium
spp
4.91
52
A
Chironomus spp
Diptera
Chironomidae
Chironomus
spp
9.3
3
C
Brillicspp
Diptera
Chironomidae
Brillia
spp
5.7
6
C
Cryptochironomus spp
Diptera
Chironomidae
Cryptochironomus
spp
6.4
6
C
Polypedilum illinoense gr
Diptera IChironomidae
Polypedilum
illinoense gr
8.7
32
A
Physaspp
Gastropoda
Physidae
Physo
spp
8.7
2
R
Corbiculcfluminea
Bivalvia ICorbiculidae
I
Corbiculo Iflurninea
6.6
20
A
North Prong Clark Creek Downstream Experimental Location
FINALID
ORDER
FAMILY
GENUS
SPECIES
TOLERANCE
COUNT
ACR
notes
Baetis intercolaris
Ephemeroptera
Baetidae
Baetis
intercalaris
5
15
A
Baetis pluto
Ephemeroptera
Baetidae
Baetis
Pluto
3.4
1
R
Baetisfiavistriga
Ephemeroptera
Baetidae
Baetis
flavistrigo
6.8
27
A
Maccoffertiummodestum
Ephemeroptera
Heptageniidae
Maccaffertium
modestum
5.7
8
C
Moccaffertium terminatum
Ephemeroptera
Heptageniidae
Moccaffertium
terminatum
4.4
1
R
Maccaffertiummeririvulanum
Ephemeroptera
Heptageniidae
Moccaffertium
rneririvula2un
0.5
1
R
Plauditus dubius gr
Ephemeroptera
Baetidae
Plauditus
dubius gr
2.2
9
C
Lobioboetis propinquus
Ephemeroptera
Baetidae
Labioboetis
propinquus
5.8
1
R
Perlesta spp
Plecoptera
Perlidae
Perlesta
spp
2.9
1
R
Hydropsyche (H) betteni
Trichoptera
Hydropsychidae
Hydropsyche
(H.) betteni
7.9
1
R
Hydropsyche (C.)sparna
Trichoptera
Hydropsychidae
Hydropsyche
(C.)sporna
2.5
10
A
Cheumatopsyche spp
Trichoptera
Hydropsychidae
Cheumatopsyche
spp
1 6.6
671
A
Chimarraspp
Trichoptera
Philopotamidae
Chimarra
spp
3.3
1
R
Progomphus spp
Odonata
Gomphidae
Progomphus
spp
8.2
1
R
Boyeria vinoso
Odonata
Aeshnidae
Boyeria
vinosa
5.8
4
C
Ophiogomphusspp
Odonata
Gomphidae
Ophiogomphus
spp
5.9
1
R
Argia spp
Odonata
Coenagrionidae
Argia
spp
8.3
2
R
Stenelmisspp
Coleoptera
Elmidae
Steneimis
spp
5.6
7
C
Corydoluscornutus
Megaloptera
Corydalidae
Corydalus
cornutus
5.21
1
R
Tipula spp
Diptera
Tipulidae
Tipula
spp
7.5
7
C
Antocho spp
Diptera
Tipulidae
Antocho
spp
4.4
2
R
Simuliumspp
Diptera
Simuliidae
Simulium
spp
4.9
48
A
Polypedilum illinoense gr
Diptera
Chironomidae
Polypedilum
illinoense gr
8.7
18
A
Cryptochironomus spp
Diptera
Chironomidae
Cryptochironomus
spp
6.4
1
R
Porometriocnemusspp
Diptera
Chironomidae
Porometriocnemus
spp
3.9
3
C
Apedilum t
Diptera
Chironomidae
Apedilum
spp
5.69
3
C
TN Tolerance Value
Micropsectra spp
Diptera
Chironomidae
Micropsectra
spp
2.4
2
R
Phaenopsectra punctipes gr
Diptera
Chironomidae
Phaenopsectra
punctipes gr
7.1
5
C
Eukiefferiello cloripennis gr
Diptera
Chironomidae
Eukiefferielia
cloripennis gr
6.2
2
R
Cambarus spp
Crustacea lCarnbaridae
Cambarus
spp
7.5
1
R
Sphaeriumspp
Bivalvia
Sphaeriidae
Sphaerium Ispp
7.2
31
C
Corbiculofluminea
Bivalvia
Corbiculidae
Corbiculo
luminea
6.6
20
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