tmdl development for the floyds fork watershed watershed hydrology and water quality calibration and...
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TMDL Development for the Floyds Fork Watershed
Watershed Hydrology and Water Quality Calibration
andWater Quality Model
Calibration
Technical Advisory Committee Meeting #2
Louisville, KYSeptember 6th, 2012
Presenters
• Tim Wool National TMDL Expert Water Quality Modeler, TOM
• Brian Watson Director, Water Resources Group Tetra Tech, Atlanta
Updates Since TAC Meeting #1• Received more data and incorporated into watershed
and instream model• Performed sensitivity analysis on sinkholes• Updated watershed model calibration• Updated watershed modeling report (REV4)• Updated instream model calibration• Updated instream modeling report (REV1)
Summary of Data Sources• KDOW
– Lat/Longs for 73 NPDES Facilities and 11 Water Withdrawals– Lat/Longs for 49 Water Quality sites (26 USGS, 11 Currys Fork WBP, 7
MSD, 3 Bullitt WBP, 2 KDOW)– Water Withdrawal Information (Lat/Longs and pumping data)– KDOW Management Decisions Document. This document contained
key information about expectations of the TMDL effort.– MS4 Information– Lat/Longs for 33 Assessment Points in watershed– Preliminary information on Water Quality Targets for Floyds Fork
watershed
• USGS– Flow Data for Period of Record at 7 Stations – Water Quality Chemistry Data for 2007 and 2008 for 26 stations.
Summary of Data Sources• MSD
– Information for Weather Stations (TR and RG Stations). – Water Quality Chemistry Data. This includes data for 5 stations for the
period of record.– Sonde data at 5 Locations– Floyds Fork Action Plan Update– Septic Tank Shapefile for Floyds Fork Watershed.– Links to key Water Quality Synthesis Reports and other online
documents– SSO Information and data– 11 GIS Coverages including contours, Dfirms, etc.
New Data Sources since TAC#1• Sinkholes• Springs• Land Use Nutrient Application Rates
– Corn and Soybean– Golf Courses
Sensitivity Analysis on Sinkholes• Received document on Curry’s Fork watershed• Contacted NRCS for coverage• Performed sensitivity analysis on number of sinkholes
– Current dataset has 132 acres (<0.1%)– Increased area by 10x (1,320 acres or <1.0%)
Springs• Received location and flow data from USGS• 20 identified springs• Utilized Kentucky Geologic Survey data for water
quality concentrations• Significantly improved hydrology calibration,
particularly baseflow numbers
Non-Point Source Application Rates• Corn and Soybean application rates and yields
– NRCS– Jefferson and Oldham County– Confirmed rates with Kentucky Corn Growers (August 22, 2012)
– Rates much lower than those published in KY tonnage reports
• Golf Course application rates– Superintendent of Golf Courses for the Louisville Metro
Parks and Recreation Department who manages nine Metro Golf Courses in the Louisville area, two of which lie in the Floyds Fork Watershed.
– Incorporated into Grassland landuse.
Water Quality Model• Water Quality Analysis
Simulation Program (WASP)• Dynamic Simulation• Full Eutrophication Kinetics• Parameters simulated
– DO– BOD– Ammonia– Nitrate-Nitrite– Organic Nitrogen– Organic Phosphorus– Ortho Phosphorus– Chlorophyll a– pH
Linkage to Water Quality Model• Calibrate LSPC Watershed Model • Removed Point Sources, SSO’s, Water Withdrawals,
Non-failing septics and Springs from the watershed model
• Run watershed model to get Land Use only outputs• Use WRDB to process LSPC outputs into WASP inputs• Processed Point Sources, SSO’s, Water Withdrawals,
Non-failing septics, and Springs to be input into WASP• Create WASP input file• Calibrate WASP model
Land Use Flows and Concentrations
LSPC
WASPPS, SSOWD, NFS, S
Linkage to Water Quality Model
Rates and Constants
Met. Data
WASP Segmentation• Floyds Fork and its tributaries were divided into a series of
computational segments.• A BASINS/WASP plug-in user interface was used to carry out
the segmentation. Used NHDPlus flowlines.• A maximum and minimum travel time was specified to divide
the waterbody into segments of desirable length.• Few segments were also aggregated or divided based on the
location of the point sources, flow and water quality stations.• Segments that were not included in the NHDPlus flowline
coverage but included in the LSPC watershed model were added manually.
WASP Segmentation
Floyds Fork Watershed: WASP SegmentsMaps produced by M.Akasapu, 02-07-2012
NAD_1983_UTM_Zone_17N0 3 61.5
Miles
0 3 61.5Kilometers
Jefferson
Bullitt
Spencer
Shelby
HenryOldham
Legend
WASP Segments
Watershed Delineation
County
WASP Segmentation
68
69
70
42
43
41
66
67
64
99
44
46
81
75
63
78
40
77
73
74
79
82
30
39
62
98
61
53
59
60
31
57
58
38
50
54
56
97
206
55
107
71
45
49
100
29
72
33 36
28
32
52
47
35
101
105103
80
104
106102
48
51
3465
Floyds Fork Watershed: WASP Segments, TopMaps produced by M.Akasapu, 01-10-2012
NAD_1983_UTM_Zone_17N
Shelby
Henry
Oldham
0 1 2 3 40.5Kilometers
0 1 2 3 40.5Miles
250
248
245
246
244
214213
212
210
211
207
226
225
215
217
223220
222
247
249
252257
243
254
253
241
239
238
237
236
240
242
235
268269
272
273
271
270
267
265263
261
262
264
266
255
228230
232
234
233
231
229
199
197
202198
201
200
224
203 205
216
218
221
207
Legend
Point Source
Flow Calibration Station
WQ Station
WASP Segments
Watershed: Top Portion
County
300
WASP ID
Watershed ID
200
WASP Segmentation
85
9
83
89
26
90
23
154
13
94
95
11
118
137
12687
115
151
128
114
113
116
91
127
135
158
119
122
152
159
16
20
175
140
120
92
15
141
111
19
86
117
25
112
153
22
174
93176
129
24
177
148
108
17
21
14
88
121
130
12
145
147
133
134
27
146
150
84
209
178
131
142
132
149
109
125
143
123
10
124
212
110
138
144
18
Floyds Fork Watershed: WASP Segments, MiddleMaps produced by M.Akasapu, 01-10-2012
NAD_1983_UTM_Zone_17N
Jefferson
Spencer
Shelby
Oldham
0 1 2 3 40.5Kilometers
0 1 2 3 40.5Miles
136 137
135
167
164166
162
163
161
160
158
168
178
177
176
174
179
151
153
154
155
156
157
159
170
171
276
192
191
190
186
193
195
196
278
282
290289
288
287
286
284
285
283
293
296
295294
291
152
275
274
260
277
259
256
258
257
280
279
281182
184
175
172
181
183
185
187189
194
188
165
Legend
300
WASP ID
Watershed ID
200
Point Source
Flow Calibration Station
WQ Station
WASP Segments
Watershed: Middle Portion
County
WASP Segmentation
6
4
2
5
1
8
3
172
165
192
191
171
189
205
169
160 161
155
187
156
190
167200
199
203
173
182
204
184
198
170
201
164
166
179 7
202
181
168
196
186
183
157
162
197
188 180
194193
163
Floyds Fork Watershed: WASP Segments, BottomMaps produced by M.Akasapu, 01-10-2012
NAD_1983_UTM_Zone_17N
Jefferson
Bullitt
Spencer
Salt River
0 1 2 3 40.5Kilometers
0 1 2 3 40.5Miles
300
299
298
297292
302
147
301
150
149
146
148
143
144
141
134
142
140
138
139
132
130
133
121
123
110
102
101
103 104
105
106
107
108
109
117
116
114
115
119
124
125
127
126
122
129
120
112 145
131
Legend
300
200
Watershed ID
WASP ID
Point Source
Flow Calibration Station
WQ Station
WASP Segments
Watershed: Bottom portion
County
• LSPC Flows and Concentrations (Land Use only)– Instream– Overland
• Water Temperature Functions• Meteorological Data
– Wind - Fraction of Daylight– Solar Radiation– Light
• Point Source Dischargers• Water Withdrawals• SSOs• Non-Failing Septics• Springs
Boundary Conditions
Same inputs as watershedmodel
Boundary Conditions
68
43
41
66
64
99
46
81
76
40207
73
74
79
30
39
53
59
31
38
50
97
206
107
71
29
33
36
28
32
52
101
105
103
104
9634
65 37
Floyds Fork Watershed: WASP SegmentsMaps produced by M.Akasapu, 08-20-2012
NAD_1983_UTM_Zone_17N
Shelby
Henry
Oldham
0 1 2 3 40.5Kilometers
0 1 2 3 40.5Miles
Legend
Flow Input
Watershed: Top Portion
County
WASP Segment
Point Source Input
Water Withdrawal Input
Spring Input
Boundary Conditions
9
83
89
19
26
90
23
154
13
95
11
12
118
137
126
151
114
113
116
91
135
119
122
152
159
140
120
92
111
86
25
174
93
129
24
177
17
27
14
88
121
147
133
134
150
84
175
142
149
125
123
110
138
Floyds Fork Watershed: WASP Segments, MiddleMaps produced by M.Akasapu, 08-20-2012
NAD_1983_UTM_Zone_17N
Jefferson
Spencer
Shelby
Oldham
0 1 2 3 40.5Kilometers
0 1 2 3 40.5Miles
Legend
Point Source Input
SSO Input
Flow Input
WASP Segments
Watershed: Middle portion
County
Water Withdrawal Input
Spring Input
Boundary Conditions
6
4
2
5
1
8
3
172
165
192
191
7
171
189
205
169
155
187
190
167
200
199
203
173
182
198
170
166
179
202
181
185
160
197
162
180
193
Floyds Fork Watershed: WASP Segments, BottomMaps produced by M.Akasapu, 08-20-2012
NAD_1983_UTM_Zone_17N
Jefferson
Bullitt
Spencer
Salt River
0 1 2 3 40.5Kilometers
0 1 2 3 40.5Miles
Legend
WASP Segments
Watershed: Bottom portion
County
Flow Input
Point Source Input
SSO Input
Water Withdrawal Input
Spring Input
LSPC output vs. WASP output
LSPC vs. WASPHydrology Calibration – Qualitative
LSPC vs. WASPWater Quality Calibration – Qualitative (TN)
LSPC vs. WASPWater Quality Calibration – Qualitative (TP)
Water Quality Calibration• Calibration period
– January 1, 2001 through December 31, 2010
• 26 USGS Stations– Primary period of data – 2007 and 2008– 8 Main Stem– 18 Tributaries
• 5 MSD– 3 Main Stem– 2 Tributaries (Lower Chenoweth Run)
• Quantitative Calibration• Qualitative Calibration• Focusing on Nutrient Species and Chlorophyll-a
WASP CalibrationCBODU at 03298135
Date
Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
2007 2008
0
10
20
30
40
CB
OD
U,
mg
/L
Measured Simulated
TEMP. at 03298135
05/01/2007 09/01/2007 01/01/2008 05/01/2008 09/01/2008
Date
0
5
10
15
20
25
30
Tem
pera
ture
, C
elc
ius
Measured Simulated
DO at 03298135
Date
Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
2007 2008
0
5
10
15
20
DO
, m
g/L
Measured Simulated
WASP CalibrationTN at 03298135
Date
Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
2007 2008
0
1
2
3
4
TN
, m
g/L
Measured Simulated
3 03298135NH at
Date
Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
2007 2008
0.00
0.05
0.10
0.15
0.20
3,
/N
Hm
gL
Measured Simulated
03298135NOX at
Date
Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec2007 2008
0.0
05.
10.
15.
20.
25.
, /
NO
Xm
gL
Measured Simulated
ORGN at 03298135
Date
Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
2007 2008
0.0
0.5
1.0
1.5
2.0
OR
GN
, m
g/L
Measured Simulated
WASP Calibration 03298135TP at
DDDD
Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
2007 2008
.000
0.05
0.10
0.15
0.20
0.25
0.30
, TP
mg
/L
Measured Simulated
PO4 at 03298135
Date
Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
2007 2008
0.00
0.02
0.04
0.06
0.08
0.10
0.12
0.14
0.16
PO
4, m
g/L
Measured Simulated
ORGP at 03298135
Date
Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
2007 2008
0.00
0.05
0.10
0.15
0.20
OR
GP,
mg
/L
Measured Simulated
WASP Calibration
Next Steps• Next TAC Meeting – Address any comments on
modeling reports• Evaluate water quality targets• Begin running scenarios
Questions?