134:
207:
ordinance were analyzed for efficacy using the model. For the varied agricultural uses in the watershed, the model was run to understand the principal sources of adverse impact, and management practices were developed to reduce in river pollution. Use of the model has specifically been conducted to
145:
Impetus to derive a quantitative prediction model arose from a trend of historically decreasing river flow rates coupled with jurisdictional and tribal conflicts over water rights as well as concern for river biota. When expansion of the Reno-Sparks
Wastewater Treatment Plant was proposed, the EPA
170:
in each time step, and the algal communities are given a separate population dynamic in each river reach (e.g.metabolic rate based upon river temperature). Sources throughout the watershed include non-point agricultural and urban stormwater as well as a multiplicity of point source discharges of
114:, the receiving waters of this closed hydrological system. Although the region is sparsely populated, it is important because Lake Tahoe is visited by 20 million persons per annum and Truckee River water quality affects at least two endangered species: the
146:
decided to fund a large scale research effort to create simulation software and a parallel program to collect field data in the
Truckee River and Pyramid Lake. For river stations water quality measurements were made in the
174:
Subsequent to the first generation of DSSAM model development, calibration and application, later refinements were made. These augmentations to model functionality focussed on increased flexibility in modeling the
158:
and collected field data on water quality and flow rates in the
Truckee River. After model calibration, runs were made to evaluate impacts of alternative land use controls and discharge parameters for treated
95:
The success of this flagship model contributed to the Agency's broadened commitment to the use of the underlying TMDL protocol in its national policy for management of most river systems in the
364:
179:
cycle and also allowed inclusion of analyzing particulate nitrogen and phosphorus. In developing DSSAM III several changes in the model operation and scope were performed.
258:
324:
Evaluation of water quality using DSSAM III under various conditions of nutrient loadings from municipal wastewater and agricultural sources: Truckee River, Nevada
81:
359:
166:
The DSSAM Model is constructed to allow dynamic decay of most pollutants; for example, total nitrogen and phosphorus are allowed to be consumed by benthic
106:
sub-basin. The DSSAM model establishes numerous stations along the entire river extent as well as a considerable number of monitoring points inside the
102:
The
Truckee River has a length of over 115 miles (185 km) and drains an area of approximately 3120 square miles, not counting the extent of its
154:
boats were used to collect grab samples at varying depths and locations. Earth
Metrics conducted the software development for the first generation
195:
minimization, (c) innovative solutions for non-point source control and d)engineering aspects of treated wastewater discharge. Regarding
20:
339:
263:
344:
248:
85:
374:
228:
122:
90:
326:.. Bureau of Water Quality Planning, Nevada Division of Environmental Protection, Carson City, Nevada (1992)
84:(EPA), the model has been refined and successive versions have been dubbed DSSAM II and DSSAM III. This
217:
200:
151:
138:
111:
187:
Numerous different uses of the model have been made including (a)analysis of public policies for urban
299:(Report). Washington, D.C.: U.S. Environmental Protection Agency (EPA). April 1991. EPA 440/4-91-001.
45:
369:
209:
286:, Earth Metrics Inc., Environmental Protection Agency Technology Series, Washington D.C. (1987)
196:
296:
53:
232:
192:
155:
69:
34:
353:
213:
96:
49:
31:
224:
147:
118:
65:
64:
management decisions in the
Truckee River Basin. This area includes the cities of
236:
107:
133:
253:
188:
103:
73:
61:
23:
284:
Development of a dynamic water quality simulation model for the
Truckee River
204:
27:
345:
Final TMDL waste loads for the
Truckee Basin derived from the DSSAM Model
160:
57:
340:
U.S. Environmental
Protection Agency TMDL program for the Truckee River
239:(e.g., a continuous linear source of pollution entering the waterway).
19:
221:
115:
132:
80:. Since original development in 1984-1986 under contract to the
176:
167:
76:
Basin. The model is historically and alternatively called the
297:
Guidance for Water
Quality-Based Decisions: The TMDL Process
235:
reaching a stream, this pollutant input can be viewed as a
44:(Dynamic Stream Simulation and Assessment Model) is a
191:runoff, (b) researching agricultural methods for
88:is based upon a pollutant loading metric called
259:Stochastic Empirical Loading and Dilution Model
231:(threatened 1970). When the model is used for
365:United States Environmental Protection Agency
8:
150:as well as the topic zone; in the case of
322:Brock, J.T., C.L. Caupp, and H.M. Runke,
18:
275:
171:treated municipal wastewater effluent.
203:, the specific elements within a new
7:
82:U.S. Environmental Protection Agency
360:Computer-aided engineering software
14:
313:University of Nevada-Reno (2002).
78:Earth Metrics Truckee River Model
16:Water quality computer simulation
282:C.M.Hogan, Marc Papineau et al.
1:
264:Storm Water Management Model
391:
311:Truckee River spill model,
227:(endangered 1967) and the
249:Nonpoint source pollution
86:hydrology transport model
229:Lahontan cutthroat trout
208:analyze survival of two
123:Lahontan cutthroat trout
91:Total maximum daily load
142:
37:
136:
22:
137:Satellite photo of
129:Development history
46:computer simulation
210:endangered species
143:
48:developed for the
38:
197:stormwater runoff
30:sub-basin of the
382:
327:
320:
314:
307:
301:
300:
293:
287:
280:
141:, September 1994
390:
389:
385:
384:
383:
381:
380:
379:
375:Water pollution
350:
349:
336:
331:
330:
321:
317:
308:
304:
295:
294:
290:
281:
277:
272:
245:
185:
131:
72:as well as the
17:
12:
11:
5:
388:
386:
378:
377:
372:
367:
362:
352:
351:
348:
347:
342:
335:
334:External links
332:
329:
328:
315:
309:John Warwick,
302:
288:
274:
273:
271:
268:
267:
266:
261:
256:
251:
244:
241:
233:surface runoff
193:surface runoff
184:
181:
156:computer model
130:
127:
70:Sparks, Nevada
15:
13:
10:
9:
6:
4:
3:
2:
387:
376:
373:
371:
368:
366:
363:
361:
358:
357:
355:
346:
343:
341:
338:
337:
333:
325:
319:
316:
312:
306:
303:
298:
292:
289:
285:
279:
276:
269:
265:
262:
260:
257:
255:
252:
250:
247:
246:
242:
240:
238:
234:
230:
226:
223:
219:
215:
214:Truckee River
212:found in the
211:
206:
202:
201:Washoe County
198:
194:
190:
182:
180:
178:
172:
169:
164:
162:
157:
153:
149:
140:
135:
128:
126:
124:
120:
117:
113:
109:
105:
100:
98:
97:United States
94:
92:
87:
83:
79:
75:
71:
67:
63:
59:
56:impacts from
55:
54:water quality
51:
50:Truckee River
47:
43:
36:
33:
32:Truckee River
29:
25:
21:
323:
318:
310:
305:
291:
283:
278:
218:Pyramid Lake
186:
183:Applications
173:
165:
152:Pyramid Lake
148:benthic zone
144:
139:Pyramid Lake
112:Pyramid Lake
101:
89:
77:
41:
39:
237:line source
225:sucker fish
119:sucker fish
108:Great Basin
52:to analyze
42:DSSAM Model
354:Categories
270:References
254:SWAT model
189:stormwater
104:Lake Tahoe
74:Lake Tahoe
62:wastewater
24:Lake Tahoe
370:Hydrology
205:xeriscape
35:watershed
28:headwater
243:See also
161:effluent
121:and the
58:land use
93:(TMDL).
222:Cui-ui
220:: the
116:Cui-ui
168:algae
216:and
177:diel
68:and
66:Reno
60:and
40:The
199:in
110:'s
356::
163:.
125:.
99:.
26:,
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
