NC0024911_Wasteload Allocation_19890320

NPDES DOCUMENT SCANNING COVER !;c1EET
NC0024911
MSD Buncombe County WWTP
NPDES Permit:
Document Type:
Permit Issuance
,�
Wasteload Allocation
r
Authorization to Construct (AtC)
Permit Modification
Complete File - Historical
Engineering Alternatives (EAA)
Report
Instream Assessment (67b)
Speculative Limits
Environmental Assessment (EA)
Document Date:
March 20, 1989
This document is printed on reuse paper - ignore any
content on the rezrerse side

NPDES WASTE LOAD ALLOCATION
PERMIT NO.: NCO() ?4 VI
FACILITY NAME- Me+ro1001%1-w4 5vws,c,,.e i1;,5f+-: e.f of
8rneontbe Col d-y
Facility Status: EXISTING PROPOSED
(circle one)
Permit Status: RENEWAL
(circle one) -
MODIFICAT ON UNPFIMITED NEW
Major Minor,
Pipe No- Clv
Design Capacity (MGD):
Domestic (X of Flow):
Industrial (X of Flow):
Comments:
-40.0
79
z1
RECEIVING STREAM:
}-r{n Broad
Class -
Sub -Basin: 04-03— oz.
Reference USGS Quad: C " 1 (please attach)
County- 64nCOmb�,
Regional Office: ) Fa Mo Ra W: WI WS
(civets ewe)
Requested By: 7"% a -1-- Date- .r f/ 21/JY
Prepared By: c ate: 2. 201 �e
Reviewed Bv: Date:
Modeler
Date Rec.
Drainage Area (mi) 1 y
41% .
Avg. Streamflow (cfs): 21
7Q10 (cfs)L? Winter 7Q10 (cfs) 5� 30Q2 (cfs) (8 1
Toxicity Limits: IWC \l
Instream Monitoring:
Parameters
X (ctrcta-one)
Upstream `i_ Location
Downstream Location
Effluent
Characteristics
Summer
Winter
BODs (mg/I)
- p
NI -IN (mg/1)
D.O. (mg/1)
MOv.i
TSS (mg/I)
3 0
F. Col. (/ 100m1)
(p 0 C
pH (SU)
(o.-- 9
pi,
.
puovww,4,..9
)
v z.._.t
o+' - Gl,,,C rl
C wJ
Ni) -Zu,-,)
R-3;
fb
Comments-
(c 1--)0 RiLt
.Y.. !
h,-e CO -?4t. pit.. ..1

Request
No.: 4986
WASTELOAD ALLOCATION APPROVAL FORM -RECEIVED
Water Quality Section
Facility Name
NPDES No.
Type of Waste
Status
Receiving Stream
Classification
Subbasin
County
Regional Office
Requestor
Date of Request
Quad
Buncombe MSD
NC0024911
Municipal
Existing/Renewal
French Broad River
C
40302
Buncombe
ARO
Harris
11/21/88
e8ne
Drainage
Summer
Winter
Average
RECOMMENDED EFFLUENT LIMITS
Wasteflow (mgd):
BOD5 (mg/1):
NH3N (mg/1):
DO (mg/1):
TSS (mg/1):
Fecal conform (#/100m1):
pH (su):
Cyanide (ug/1):
Toxicity testing:
40.00 -
30 -
30-
1000 —
6-9 —
43 -
Attached. (2 s'Fz.y.
Downstream (Y/N):
Upstream (Y/N): y
Effluent: Recommend Cr,
MONITORING
FEB 2 1 1989
1 Utfice
ei:c.; ;'.� t IUI Carolina
area: 966.00 sq mi
7Q10: 466.00 cfs
7Q10: 595.00 cfs
flow: 2140.0 cfs
30Q2: 884.00 cfs
cic&&tJ 3)t oI.'/ nct,
1.411-04.1
Location: 1) @ VirSt ¢.cfQ.S5 i -. ptOA. - "•
2) immed. above Ivy Creek
Location: curren
{�t location , {
Ni, Cu, Zn, Ago —
COMMENTS
The discharge is into the flume for a hydroelectric facility. I1
-v\,A- assurance that no iniact on water quality or biota in the flume (--
be demonstrated, through^screen installation, minimum flow, o - �,`�,.tn/�;�
I✓c !7 �Jk-LP4'�pYp 14-4 j L ¢ �' ( r CiCwIG et V 0-4-1 a.' p 2(� i o t7t4wa7�w/
D.• - .. -No '� e+-�':e-s. (nL►,-►!. ao«.. •.. G bvuf
Recommended by: t(G c cioa
Reviewed by
Tech Support Supervisor:
ikar
Regional
Permits & n ineering:
Date:
Date: J/ /
Supervisor: �,: �� _'�. Date: 3 / /'b /
fff ll!
Date: 3(!iPY
RETURN TO TECHNICfrSERVICES BY: ^
W .
IL//85
1'

Facility L�-� frtSName U oyb Permit # %1CIDM d c? (
ACUTE TOXICITY TESTING REQUIREMENT (QRTRLY)
Fathead Minnow 24 hr - No Significant Mortality
The permittee shall conduct acute toxicity tests on a quarterly basis using protocols defined in the
North Carolina Procedure Document entitled "Pass/Fail Methodology For Determining Acute
Toxicity In A Single Effluent Concentration". The monitoring shall be performed as a Fathead
Minnow (Pimephales promelas) 24 hour static test, using effluent collected as a 24 hour
composite. The effluent concentration at which there may be at no time significant acute mortality
in any two consecutive toxicity tests is 90% (defined as treatment two in the North Carolina
procedure document). Effluent samples for self -monitoring purposes must be obtained during
representative effluent discharge below all waste treatment. The first,test will be perfoimed afters
thirty days from issuance of this permit during the months of N
All toxicity testing results required as part of this permit condition will be entered on the Effluent
Discharge Monitoring Form (MR-1) for the month in which it was performed, using the parameter
code TGE6C. Additionally, DEM Form AT-2 (original) is to be sent to the following address:
Attention: Technical Services Branch
North Carolina Division of
Environmental Management
P.O. Box 27687
Raleigh, N.C. 27611
Test data shall be complete and accurate and include all supporting chemical/physical measurements
performed in association with the toxicity tests, as well as all dose/response data. Total residual
chlorine of the effluent toxicity sample must be measured and reported if chlorine is employed for
disinfection of the waste stream.
Should any single quarterly monitoring indicate a failure to meet specified limits, then monthly
monitoring will begin immediately until such time that a single test is passed. Upon passing, this
monthly test requirement will revert to quarterly in the months specified above.
Should any test data from either these monitoring requirements or tests performed by the North
Carolina Division of Environmental Management indicate potential impacts to the receiving stream,
this permit may be re -opened and modified to include alternate monitoring requirements or limits.
NOTE: Failure to achieve test conditions as specified in the cited document, such as minimum
control organism survival and appropriate environmental controls, shall constitute an invalid test
and will require immediate retesting(within 30 days of initial monitoring event). Failure to submit
suitable test results will constitute noncompliance with monitoring requirem nts.
7Q10 cfs
Permitted Flow i{O
IWC%
Basin & Sub -Basin �.�6403 . 2�1 Receivi Stream d. graft.
County r ts..
re 0% 4. ""��/"'
i lA `its �[�o�Q ,�A •^t D
MGD Recommended by: sel V; f4.,,,—'t
tat
1-/ S'e'
Date 3l 2sit`�1
11,0
140)
Is 1146 efts ►
**Acute Toxicity(Fathead Minnow 24hr) No Significant Mortality at 90%, F4 * L%✓
See Part Condition

Facility Name3.)-,,co‘An_ c -S1:›
Permit # 1-ine 24i ( I
CHRONIC TOXICITY TESTING REQUIREMENT (QRTRLY)
The effluent discharge shall at no time exhibit chronic toxicity in any two consecutive toxicity tests,
using test procedures outlined in:
1.) The North Carolina Ceriodaphnia chronic effluent bioassay procedure (North Carolina Chronic
Bioassay Procedure - Revised *February 1987) or subsequent versions.
The effluent concentration at which there may be no observable inhibition of reproduction or
significant mortality is ILI % (defined as treatment two in the North Carolina procedure
document). The permit holder shall perform quarterly monitoring using this procedure to establish
compliance with the permit condition. The first test will be performed after thirty days from
issuance of this permit during the months of Fes. '4°"1 11.v' . Effluent
sampling for this testing shall be performed at the NPDES per'mitt nal effluent discharge below
all treatment processes.
All toxicity testing results required as part of this permit condition will be entered on the Effluent
Discharge Monitoring Form (MR-1) for the month in which it was performed, using the parameter
code TGP3B. Additionally, DEM Form AT-1 (original) is to be sent to the following address:
Attention: Technical Services Branch
North Carolina Division of
Environmental Management
P.O. Box 27 687
Raleigh, N.C. 27611
Test data shall be complete and accurate and include all supporting chemical/physical measurements
performed in association with the toxicity tests, as well as all dose/response data. Total residual
chlorine of the effluent toxicity sample must be measured and reported if chlorine is employed for
disinfection of the waste stream.
Should any single quarterly monitoring indicate a failure to meet specified limits, then monthly
monitoring will begin immediately until such time that a single test is passed. Upon passing, this
monthly test requirement will revert to quarterly in the months specified above.
Should any test data from this monitoring requirement or tests performed by the North Carolina
Division of Environmental Management indicate potential impacts to the receiving stream, this
permit may be re -opened and modified to include alternate monitoring requirements or limits.
NOTE: Failure to achieve test conditions as specified in the cited document, such as minimum
control organism survival and appropriate environmental controls, shall constitute an invalid test
and will require immediate retesting(within 30 days of initial monitoring event). Failure to submit
suitable test results will constitute noncompliance with monitoring requirements.
7Q10 L(bb cfs
Permited Flow (-to MGD
IWC% f . 7
Basin & Sub -basin o'{0302,
ReceivinkOtream t=rA.,
County Date
Recommended by:
**Chronic Toxicity (Ceriodaphnia) P/F at i9 %, A. #54 See Part 3 , Condition . Y

%
DIVISION OF ENVIRONMENTAL MANAGEMENT
WATER QUALITY SECTION
March 10, 1989
MEMORANDUM
TO:
Through: Forrest R. Westall
Regional Water Quality Supervisor / ARO
From:
Subject:
Dale Overcash, Supervisor
NPDES Permits Group/Permits & Engineering
Max L. Haner, Environmental Chemist
Water Quality Section / ARO PAU411441
Comments and Recommendation
Proposed WLA # 4986
MSD of Buncombe County
NPDES Permit No. NC0024911
MAR 14 1989
PERMITS & ENGINEERING
Review of the proposed Wasteload Allocation for MSD of Buncombe County
(NC0024911) shows recommended effluent limits for Cyanide and Dissolved
Oxygen in addition to those parameters limited in the existing permit.
The permit application indicates no detectable cyanide in the
discharge. Influent and effluent cyanide measurements to the MSD system
on three consecutive dates (October 21-23,1986) all showed no
detectable presence (<0.040 mg/1) as conducted by Wastewater Services,
Inc., (Certified Laboratory). Also, metal plating pretreatment programs
in the MSD service area require cyanide destruct systems (C12) with
routine analysis and reporting under the MSD pretreatment program which
as effectively operated appear to support the 1986 data. Unless the
proposed limit is derived by hard data, it is recommended that the
permit require only monitoring (quarterly) of this parameter at this
time. Limits should be included in the permit at a later date when the
monitoring data indicate the need.
As you are aware, MSD discharges to a flume line which serves its
new hydroelectric plant. The point of discharge to the flume is
approximately 1/4 mile upline from the turbines. The proposed effluent
D.O. limit is intended to protect WQ standards in the flume which
reportedly contains a substantial fish population. No WQ problems are
projected in the River downstream of the Hydro plant. Also, there is
no indication WQ problems in the flume to date. Rather than place an
effluent limit in the permit at this time, it is recommended that MSD
be required to provide both effluent and in -flume monitoring (daily &
weekly) with the appropriate D.O. limits entered in the permit as
result of these data; assuming no other control measures are viable or
effective.
If you wish to discuss this matter in more detail, please advise.
9

North Carolina Division of Environmental Management
Water Quality Section / Technical Services Branch
Intensive Survey Unit
10 February 1989
Memorandum
To: Trevor Clements
Thru: Jay Sauber
From: Howard Bryant M44,4
Subject: Metro Sewage District of Buncombe County NC0024911 Haywood County
Receiving Stream: French Broad River Sub -basin: 040302
DAY BOD NH3-N TKN-N NOX-N TOTALN REPS
0 12.0 12.0 0.02 12.0
5 13.7 13.0 15.0 0.07 15.1 9
1 0 19.7 8
1 5 30.8 12.0 13.0 0.99 14.0 8
2 0 50.7 7
2 5 65.6 7
30 88.2 0.02 3.2 14.0 17.0 7
3 5 104.5 6
40 108.3 0.04 2.7 14.0 17.0 6
45 111.0 5
50 113.3 5
55 115.1 5
60 116.9 5
65 118.3 5
Date Collected: 05/06 December 1988 (0600 - 0600)
Collected By: M.Haner
Asheville Lab BOD-5: 14.0 mg/L Total Phosphorus: 3.5 mg/L
pH: 7.35 Sulfite test for chlorine: 5 drops/100 ml 100 % sample was seeded.
Range of BOD-5: 13.0 - 14.4 mg/L
Range of BOD-65: 117.4 - 121.3 mg/L
Test evaluation: good
0' \c\&k
051)

300
130;-
2-� t�
�l
1, S zo
2,55- z3
L2
3,i 22
2,1 16
-cD
.9U aot— 1-
9 q 2,t
gI v 11
7,0
LI, 1 zo
6,, 5 3. 0 23
7 0 7.raz
22_
6,9

MODEL RESULTS
Discharger : BUNCOMBE MSD
Receiving Stream : FRECH BROAD RIVER
SUMMER
LOW K2
The End D.O. is 4.52 mg/1.
The End CBOD is 14.10 mg/1.
The End NBOD is 7.75 mg/1.
WLA WLA WLA
DO Min CBOD NBOD DO Waste Flow
(mg/1) Milepoint Reach # (mg/1) (mg/1) (mg/1) (mgd)
Segment 1 4.11 14.00 1
Reach 1 150.00 90.00 0.00 40.00000
Reach 2 0.00 0.00 0.00 0.00000

*** MODEL SUMMARY DATA ***
Discharger : BUNCOMBE MSD Subbasin : 040302
Receiving Stream : FRECH BROAD RIVER Stream Class: C
Summer 7Q10 . Winter 7Q10 :
Design Temperature: 23.
(LENGTH' SLOPE' VELOCITY I DEPTH( Kd I Kd I Ka I Ka I KN I KN I KNR I KNR I
1 mile I ft/mil fps I ft 'design' @20° 'design' @20° 'design' @20° 'design' @20°
11 I 11 1 I I I I 1
Segment 1 1 14.001 20.001 2.256 14.02 10.45 10.39 12.49 I 2.331 0.63 10.50 10.63 10.00 I
Reach 1 I 1 I I I I I I 1 I 1 1 I
11 I I 1 I I I I I I I
Segment 1 I 4.001 11.001 1.928 14.51 10.35 10.30 12.49 I 2.331 0.38 10,30 10.38 10.00 I
Reach 2 I I I I I I I I I I I I I
1 Flow 1 CBOD 1 NBOD 1 D.O. I
I cfs 1 mg/1 1 mg/1 1 mg/1 I
Segment 1 Reach 1
Waste 162.000 1150.000 1 90.000 1 0.000
HeadwatersI466.000 1 2.000 1 1.000 1 6.500
Tributary 1 0.000 1 2.000 1 1.000 I 7.720
* Runoff I 2.670 1 2.000 1 1.000 1 7.720
Segment 1 Reach 2
Waste I 0.000 1 0.000 1 0.000 1 0.000
Tributary 117.000 1 2.000 1 1.000 1 7.720
* Runoff I 2.670 1 2.000 1 1.000 1 7.720

* Runoff flow is in cfs/mile
•
a.
MODEL RESULTS
Discharger : BUNCOMBE MSD
Receiving Stream : FRECH BROAD RIVER
SUMMER
OCONNOR DOBBINS K2
The End D.O. is 7.41 mg/l.
The End CBOD is 14.10 mg/1.
The End NBOD is 7.75 mg/1.
WLA WLA WLA
DO Min CBOD NBOD DO Waste Flow
(mg/1) Milepoint Reach # (mg/1) (mg/1) (mg/l) (mgd)
Segment 1 5.74 0.00 1
Reach 1 150.00 90.00 0.00 40.00000
Reach 2 0.00 0.00 0.00 0.00000

*** MODEL SUMMARY DATA ***
Discharger : BUNCOMBE MSD Subbasin : 040302
Receiving Stream : FRECH BROAD RIVER Stream Class: C
Summer 7Q10 : Winter 7Q10 :
Design Temperature: 23.
(LENGTH' SLOPE' VELOCITY 1 DEPTH' Kd I Kd 1 Ka I Ka 1 KN 1 KN I KNR 1 KNR 1
1 mile 1 ft/nil fps I ft 'design' @20° 'design' 020° 'design, @200 'design' @20° 1
1 1 1 1 1 1 1 1 1 I 1 1 1
Segment 1 1 14.001 20.001 2.256 1 4.02 10.45 10.39 19.07 I 8.501 0.63 1 0.50 10.63 1 0.00 I
Reach 1 1 1 I 1 1 1 1 1 1 1 1 1 I
11 1 1 1 1 1 1 1 1 1 1 1
Segment 1 I 4.001 11.001 1.928 1 4.51 1 0.35 1 0.30 18.43 1 7.901 0.38 1 0.30 1 0.38 1 0.00 1
Reach 2 I I I I 1 1 1 1 I 1 I 1 1
1 Flow 1 CBOD I NBOD 1 D.O.
1 cfs 1 mg/1 1 mg/1 1 mg/1
Segment 1 Reach 1
Waste 1 62.000 1150.000 i 90.000 1 0.000
Headwaters1466.000 1 2.000 1 1.000 1 6.500
Tributary I 0.000 1 2.000 I 1.000 1 7.720
* Runoff 1 2.670 1 2.000 1 1.000 1 7.720
Segment 1 Reach 2
Waste I 0.000 I 0.000 I 0.000 1 0.000
Tributary 1 17.000 I 2.000 1 1.000 1 7.720
* Runoff 1 2.670 1 2.000 1 1.000 1 7.720

* Runoff flow is in cfs/mile
Request No.: 4986
WASTELOAD ALLOCATION APPROVAL
Facility Name:
NPDES No.:
Type of Waste:
Status:
Receiving Stream:
Classification:
Subbasin:
County:
Regional Office:
Requestor:
Date of Request:
Quad:
Buncombe MSD
NC0024911
Municipal
Existing/Renewal
French Broad River
C
40302
Buncombe
ARO
Harris
11/21/88
e8ne
FORM
Drainage area: 966.00 sq mi
Summer 7Q10: 466.00 cfs
Winter 7Q10: 595.00 cfs
Average flow: 2140.0 cfs
30Q2: 884.00 cfs
RECOMMENDED EFFLUENT LIMITS
Wasteflow (mgd):
BOD5 (mg/1):
NH3N (mg/1):
DO (mg/1):
TSS (mg/1):
Fecal coliform (#/100m1):
pH (su):
Cyanide (ug/1):
40.00
30
30
1000
6-9
43
Toxicity testing: Attached.
MONITORING

Downstream (Y/N): y Location: 1) @ current location and
2) immed above Ivy Creek
,Upstream (Y/N): y Location: current location
' Effluent: Recommend Cr, Ni, Cu, Zn, Ag.
COMMENTS
The discharge is into the flume for a hydroelectric facility. It is recomm
that assurance that no impact on water quality or biota in the flume
be demonstrated, through screen installation, minimum flow, and/or
effluent channel designation, or other appropriate steps.
Recommended by: Date:
Reviewed by
Tech Support Supervisor: Date:
Regional Supervisor: Date:
Permits & Engineering: Date:
RETURN TO TECHNICAL SERVICES BY:

North Carolina Division of Environmental Management
Water Quality Section / Technical Services Branch
Intensive Survey Unit
6 February 1989
Memorandum
To: Trevor Clement
Thru: Jay Sauber .1
From: Howard Bryant l►11, 4
A-Gt-A/ ✓;.rl
Subject: Metro Sewage District of Buncombe County NC0024911 Haywood County
Receiving Stream: French Broad River Sub -basin: 040302
DAY BOD NH3-N TKN-N NOX-N TOTALN REPS
0 1 2.0 12.0 0.02 12.0
5 13.7 i3,l 13.0 15.0 P 0.07 15.1 9
1 0 19.7 8
1 5 30.8 21,3 12.0 13.0 0.99 14.0 8
2 0 50.7 7
25 65.6 7
30 88.2 2-1.7 0.02 3.2 14.0 17.2 '``= 7
35 104.5 6
4 0 108.3 2-+`1'`6 0.04 2.7 14.0 16.7 6
45 111.0 5
5 0 1 13.3 0 `6 5
55 115.1 5
6 0 1 1 6.9 «,=C 5
Date Collected: 05/06 December 1988 (0600 - 0600)
Collected By: M.Haner
Asheville Lab BOD-5: 14.0 mg/L Total Phosphorus: 3.5 mg/L
pH: 7.35 Sulfite test for chlorine: 5 drops/100 ml 100 % sample was seeded.
Range of BOD-5: 13.0 - 14.4 mg/L
Range of BOD-60: 115.7 - 119.6 mg/Lmg/L
Use 9t
CZ X y <-1

,1111,-111114
nou,Er
minn
„„„„,„
W�11_t 1_l [ I i 11.J-J-I 1 I I I I I I! I I-I-I-1 1-1-1-1-I-I-I I-1-I-I I I 1-1-1 I 11-1 III 1 I -I -I 1 1 11
1-1--I-1-#441-
I I- I-1-1-1-I -144-I 4 { 41 14 14 N N { { 11 4 1
cc
W
a
0
V
1
0
}
E
0
u.
cc
W
a
cc

11--t_Sb
-7•
D.
,.....
1.
°
-cF2 =mkt

Pollutant
Cadmium
Chromium
Copper
Nickel
Lead
Zinc
Cyanide
Mercury
Silver
Cadmium
Chromium
Copper
Nickel
Lead
Zinc
Cyanide
Mercury
Silver
PRETREATMENT HEADWORKS REVIEW
Discharger:
Receiving stream:
Stream Class:
USGS Zone:
7Q10:
Design flow:
Actual flow:
Percent industrial:
IWC:
BUNCOMBE CO MSD
FRENCH BROAD RIVER
C
1
419.000 cfs
40.000 mgd
22.7 mgd
37.0 %
12.9 %
Standard/AL Removal
(mg/1) Eff.
0.002
0.05
0.007
0.088
0.003
0.05
0.005
0.000012
0.00006
Total
Influent
Load
(lbs/day)
3.36
34.28
42.68
8.88
3.83
75.13
5.49
0.01
3.33
S
S
AL
S
S
AL
S
S
AL
99%
99%
82%
99%
99%
77%
59%
86%
94%
Actual
Allowable Domestic
Load (a) Load
(lbs/day) (lbs/day)
489.64
12241.03
95.21
21544.21
734.46
532.22
29.86
0.21
2.45
0.010
5.930
11.110
1.480
0.740
31.110
0.010
0.010
0.070
Predicted
Background Effluent
Reserve Conc Conc (b)
(lbs/day) (mg/1) (mg/1)
486.28
12206.75
52.53
21535.33
730.63
457.09
24.37
0.20
-0.88
0 0.0002
0 0.0018
0 0.0406 >
0 0.0005
0 0.0002
0 0.0912 >
0 0.0119 >
0 0.0000
0 0.0011 >
01/24/89
Industrial
Load
(lbs/day)
3.350
28.350
31.570
7.400
3.090
44.020
5.480
0.000
3.260
Allowable Obs.
Effluent Max
Conc (c)
(mg/1) (mg/1)
0.0155
0.3879
0.0543
0.6827
0.0233
0.3879
0.0388
0.0001
0.0005
0.:
0.4:
0.:
0.5i

Pollutant
Cadmium
Chromium
Copper
Nickel
Lead
Zinc
Cyanide
Mercury
Silver
Cadmium
Chromium
Copper
Nickel
Lead
Zinc
Cyanide
Mercury
Silver
PRETREATMENT HEADWORKS REVIEW
Discharger:
Receiving stream:
Stream Class:
USGS Zone:
7Q10:
Design flow:
Actual flow:
Percent industrial:
IWC:
BUNCOMBE CO MSD
FRENCH BROAD RIVER
C
1
419.000 cfs
40.000 mgd
22.7 mgd
37.0 %
12.9 %
Standard/AL Removal
(mg/1) Eff.
0.002
0.05
0.015
0.05
0.025
0.05
0.005
0.0002
0.01
Total
Influent
Load
(lbs/day)
3.36
34.28
42.68
8.88
3.83
75.13
5.49
0.01
3.33
S
S
AL
S
S
AL
S
S
AL
99%
99%
82%
99%
99%
77%
59%
86%
94%
Actual
Allowable Domestic
Load (a) Load
(lbs/day) (lbs/day)
489.64
12241.03
204.02
12241.03
6120.52
532.22
29.86
3.50
408.03
Background
Reserve Conc
(lbs/day) (mg/1)
486.28
12206.75
161.34
12232.15
6116.69
457.09
24.37
3.49
404.70
0.010
5.930
11.110
1.480
0.740
31.110
0.010
0.010
0.070
Predicted
Effluent
Conc (b)
(mg/1)
0 0.0002
0 0.0018
0 0.0406
O 0.0005
0 0.0002
0 0.0912
O 0.0119
0 0.0000
O 0.0011
01/24/89
Industrial
Load
(lbs/day)
3.350
28.350
31.570
7.400
3.090
44.020
5.480
0.000
3.260
Allowable Obs.
Effluent Max
Conc (c)
(mg/1) (mg/1)
0.0155
0.3879
> 0.1164
0.3879
0.1940
> 0.3879
> 0.0388
0.0016
0.0776
0.
0.4
0.
0.5

North Carolina Division of Environmental Management
Water Quality Section / Technical Services Branch
intensive Survey Unit
27 January 1989
Memorandum
To: Trevor Clements
Thru: Jay SauberJ
From: Howard Bryant
Subject: Metro Sewage District of Buncombe County NC0024911 Haywood County
Receiving Stream: French Broad River Sub -basin: 040302
DAY BOD NH3-N TKN-N NOX-N TOTALN REPS
0 12.0 12.0 0.02 12.0
5 13.7 13.0 15.0 0.07 15.1 9
1 0 19.7 8
1 5 30.8 12.0 13.0 0.99 14.0 8
20 50.7 7
25 65.6 7
30 88.2 0.02 3.2 14.0 17.2 7
35 104.5 6
4 0 108.3 6
45 111.0 5
50 113.3 5
Date Collected: 05/06 December 1988 (0600 - 0600)
Collected By: M.Haner
Asheville Lab BOD-5: 14.0 mg/L Total Phosphorus: 3.5 mg/L
pH: 7.35 Sulfite test for chlorine: 5 drops/100 ml 100 % sample was seeded.
Range of BOD-5: 13.0 - 14.4 mg/L
Range of BOD-50: 112 .0 - 115.7 mg/L
Iry to K '

? ?0 s-A-g, Or,- 05
Pollutant
Cadmium
Chromium
Copper
Nickel
Lead
Zinc
Cyanide
Mercury
Silver
Cadmium
Chromium
Copper
Nickel
Lead
Zinc
Cyanide
Mercury
Silver
PRETREATMENT HEADWORKS REVIEW
Discharger:
Receiving stream:
Stream Class:
USGS Zone:
7Q10:
Design flow:
Actual flow:
Percent industrial:
IWC:
BUNCOMBE CO MSD
FRENCH BROAD RIVER
1
419.000 cfs
40.000 mgd
22.7 mgd
37.0 %
12.9 %
Standard/AL Removal
(mg/1) Eff.
0.002
0.05
0.007
0.088
0.003
0.05
0.005
0.000012
0.00006
Total
Influent
Load
(lbs/day)
3.36
34.28
42.68
8.88
3.83
75.13
5.49
0.01
3.33
S
S
AL
S
S
AL
S
S
AL
99%
99%
82%
99%
99%
77%
59%
86%
94%
Actual
Allowable Domestic
Load (a) Load
(lbs/day) (lbs/day)
489.64
12241.03
95.21
21544.21
734.46
532.22
29.86
0.21
2.45
Background
Reserve Conc
(lbs/day) (mg/1)
486.28
12206.75
52.53
21535.33
730.63
457.09
24.37
0.20
-0.88
0
0
0
0
0
0
0
0
0.010
5.930
11.110
1.480
0.740
31.110
0.010
0.010
0.070
Predicted
Effluent
Conc (b)
(mg/1)
01/22/89
CA007 Zola 4-(;
Industrial
Load
(lbs/day)
3.350
28.350
31.570
7.400
3.090
44.020
5.480
0.000
3.260
Allowable Obs.
Effluent Max
Conc (c)
(mg/1) (mg/1)
0.0002
43 0.3879 AIM
3 Is
0.0406 >
r
0.0002
0.0912 >
0.0119, >
0.0000
0.0011 >
0 0S43 . 0.4;
0.6827 -
0.0233
0.3879 0.5
0.0388
0.0001
0.0005

Pollutant
Cadmium
Chromium
Copper
Nickel
Lead
Zinc
Cyanide
Mercury
Silver
Cadmium
Chromium
Copper
Nickel
Lead
Zinc
Cyanide
Mercury
Silver
PRETREATMENT HEADWORKS REVIEW
Discharger:
Receiving stream:
Stream Class:
USGS Zone:
7Q10:
Design flow:
Actual flow:
Percent industrial:
IWC:
BUNCOMBE CO MSD
FRENCH BROAD RIVER
C
1
419.000 cfs
40.000 mgd
22.7 mgd
37.0 %
12.9 %
Standard/AL Removal
(mg/1) Eff.
0.002
0.05
0.015
0.05
0.025
0.05
0.005
0.0002
0.01
Total
Influent
Load
(lbs/day)
3.36
34.28
42.68
8.88
3.83
75.13
5.49
0.01
3.33
S
S
AL
S
S
AL
S
S
AL
99%
99%
82%
99%
99%
77%
59%
86%
94%
Actual
Allowable Domestic
Load (a) Load
(lbs/day) (lbs/day)
489.64
12241.03
204.02
12241.03
6120.52
532.22
29.86
3.50
408.03
Background
Reserve Conc
(lbs/day) (mg/1)
486.28
12206.75
161.34
12232.15
6116.69
457.09
24.37
3.49
404.70
0.010
5.930
11.110
1.480
0.740
31.110
0.010
0.010
0.070
Predicted
Effluent
Conc (b)
(mg/1)
o atO16
0 D.,0018
0 0.0406 >
0 0.0005
0 0.0002
0 0.0912 >
0 0.0119 >
0 0.0000
0 0.0011
01/22/89
Industrial
Load
(lbs/day)
3.350
28.350
31.570
7.400
3.090
44.020
5.480
0.000
3.260
Allowable Obs.
Effluent Max
Conc (c)
(mg/1) (mg/1)
0.3879
0.1164
0.3879
0.1940
0.3879
0.0388
0.0016
0.0776
0.4
0.5