NC0024244_Effluent Toxicity Report_20211104

Em6onmenhliesting Solution, Inc.
Effluent Toxicity Report Form - Chronic Fathead Minnow Multi -Concentration Test Date: October 16, 2021
PO Box 7565
Asheville, NC 28802
Phone: [phone]
Fax: [phone]
Facility: Environment 1, Inc. NPDES It: NC 0024244 Pipe #: 001 County: Stanly
City of Albemarle, Long Creek WWTP
Signature of Operator in Responsible Charge (ORC):
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Laboratory Performing Test: Environmental Testing Solutio s, Inc., Certificate # 37
1�1
ORC Phone / E-mail: ` ter- 3 i : �-j(a;y
Signature of Laboratory Supervisor:
Comments
Project9: 16316
Sample 8: 211005.04,
211007.04,
211009.0
e-Mail to: ATForms.ATB(dncdenr.gov
Or Mail Original to: North Carolina Division of Water Resources
Water Sciences Section / Aquatic Toxicology Branch
1621 Mail Service Center
Raleigh, NC 27699-1621
Test Start Date:
October 05, 2021
Control
Organisms
% Effluent
45%
% Effluent
67.5%
% Effluent
90%
% Effluent
95%
% Effluent
Water Quality Data
Control
pH (SU):
DO (mg/L):
Temp. (°C):
High Concent
pH (SU):
DO (mg/L):
Temp. (Cl:°
100%
Test Organisms: Plmephales promelas
Supplier
Replicate number
1 2 3 4
In-house Culture
Begin hatch:
End hatch:
Surviving number of larvae
10
10
10
10
Original number of larvae
10
10
10
10
Weight/original (mg/larvae)
0.822
0.712
0.684
0.814
Surviving number of larvae
10
10
10
10
Original number of larvae
10
10
10
10
Weight/original (mg/larvae)
0.787
0.812
0.781
0.667
Surviving number of larvae
10
10
10
10
Original number of larvae
10
10
10
10
Weight/original (mg/larvae)
0.726
0.726
0.702
0.676
Surviving number of larvae
10
10
10
10
Original number of larvae
10
10
10
10
Weight/original (mg/larvae)
0.753
0.775
0.800
0.825
Surviving number of larvae
10
10
10
10
Original number of larvae
10
10
10
10
Weight/original (mg/larvae)
0.825
0.820
0.773
0.795
Surviving number of larvae
10
10
10
9
Original number of larvae
10
10
10
10
Weight/original (mg/larvae)
0.840
0.736
0.823
0.699
10-04-21 1452
10-05-21 0558
Survival (%)
Average wt (mg)
Average wt /
surviving (mg)
Survival (%)
Average wt (mg)
Survival (%)
Average wt (mg)
Survival (%)
Average wt (mg)
Survival (%)
Average wt (mg)
Survival (%)
Average wt (mg)
100.0
0.758
0.758
100.0
0.762
100.0
0.708
100.0
0.788
100.0
0.803
97.5
0.775
Day 0
Day 1
Day 2
Day 3
Day 4
Day 5
Day 6
Initial Final
Initial Final
Initial Final
Initial Final
Initial Final
Initial Final
Initial Final
7.74
7.70
7.82
7.69
7.93
7.66
7.78
7.70
7.71
7.66
7.77
7.75
7.69
7.60
7.8
7.6
7.7
7.8
7.6
7.7
7.7
7.6
7.8
7.3
7.7
7.6
7.6
7.7
24.7
24.4
24.7
24.6
24.8
24.6
24.7
24.7
24.8
24.5
24.7
24.5
24.8
24.3
6.11
6.41
6.34
6.40
6.47
6.52
6.60
6.54
6.46
6.50
6.60
6.68
6.54
6.44
7.7
7.6
8.0
7.7
8.2
7.6
8.0
7.4
8.0
7.3
7.8
7.5
7.9
7.8
24.6
24.5
24.6
24.5
25.0
24.4
25.0
24.8
25.0
24.6
24.8
24.5
25.0
24.3
Sample Information
Collection start date:
Grab:
Composite duration:
Alkalinity (mg/L CaCO3):
Hardness (mg/L CaCO3):
Conductivity (pmhos/cm):
Total residual chlorine (mg/L):
Sample Temp. at Receipt (°C):
Overall Analysis:
Sample 1
Sample 2
Sample 3
Control
10-03.21
10-05-21
10-07-21
24-h
24-h
24-h
�
_=-=�.
<5.0
5.1
5.1
62, 62, 61
56
47
50
91, 87, 89
375
282
295
314-327
<0.10
<0.10
<0.10
„k=M'- L
0.6
0.3
1.0
--
Analyses
Normal:
Horn. Var.
NOEC:
LOEC:
ChV:
Method:
Survival
Growth
Yes
Yes
Yes
Yes
100%
100%
>100%
>100%
>100%
>100%
Visual Insp.
Dunnett's
Survival
Growth
%Effluent
Critical
Calculated
Critical
Calculated
45%
2.410
-0.103
67.5%
2.410
1.390
90%
.
2.410
-0.833
95%
2.410
-1.246
100%
2.410
-0.454
Result: PASS LOEC: >100% NOEC: 100% ChV: >100%
DWR Report Form AT-5