Monitoring, Assessment and TMDLs

Monitoring, Assessment and Total Maximum Daily Loads (TMDLs) Quick Finder
Monitoring & TMDLs Home 303(d) lists EPA-established TMDLs	EPA-lead TMDLs, in progress Monitoring Arizona TMDLs	California TMDLs Hawai'i TMDLs Nevada TMDLs	Pacific Islands TMDLs

Recent Updates

Lost River Nutrients & pH TMDLs

National Links

EPA's National TMDL Web site

You will need Adobe Reader to view some of the files on this page. See EPA's PDF page to learn more about PDF, and for a link to the free Adobe Reader.

EPA-Established TMDLs

Although most TMDLs are adopted by states, territories, or authorized tribes, and then approved by EPA, EPA also establishes TMDLs in some cases if:

EPA disapproves TMDLs submitted by states, territories, or authorized tribes,
States, territories, or authorized tribes do not submit TMDLs in a timely manner,
EPA is required to do so pursuant to litigation settlements or judicial orders, or
States ask EPA to establish TMDLs for particular water bodies.

The following are TMDLs which have been completed by EPA as part of legal requirements under lawsuit settlement consent decrees. EPA-established TMDLs covering other bodies of water will be added as they become available.

Albion River Sediment TMDL

Final TMDL (PDF) (49 pp, 139 K)
The following figure is not included in the document:

figure 1 (PDF) (poster 35 x 23 inches, 1 pg, 565K)

Summary of Comments and Responses (PDF) (15 pp, 30K)

Ballona Creek and Wetland Trash TMDL

EPA established this TMDL on March 19, 2002. On August 1, 2002, EPA approved the TMDL submitted by the State of California, which supercedes the EPA-established TMDL.

State-adopted TMDLs for Ballona Creek and Wetland Trash TMDL

Big River Sediment TMDL

Final TMDL (PDF) (51 pg, 142K)
The following figure is not included in the document:

figure 1 (PDF) (1 pg, 337 K)

Summary of Comments and Responses (PDF) (10 pp, 30K)

Calleguas Creek Chloride TMDL

Final TMDL (PDF) (35 pp, 317K)
Technical Support Document (PDF) (72 pp, 420K)

Summary of Comments and Responses (PDF) (47 pp, 104K)

Eel River (Lower) Sediment and Temperature TMDLs

Final TMDL (PDF) (83 pp, 1.7M)
Comment Responsiveness Summary (PDF) (16 pp, 107K)

Eel River (North Fork) Sediment and Temperature TMDLs

Final TMDL (PDF) (50 pp, 615K)

Figure 3-1 (PDF) (1 pg, 1.2 MB)
Figure 3-2, 3-3, 3-4, 3-5 (PDF) (5 pp, 145K)
Figure 3-6 (PDF) (1 pg, 36K)
Figure 3-7 (PDF) (1 pg, 34K)

Response to Comments (PDF) (14 pp, 36K)

Eel River (Middle Fork) Sediment and Temperature TMDLs

Final TMDL (PDF) (58 pp, 299K)

Figures (PDF) (7 pp, 605K)

Appendix A (PDF) (21 pg, 1.4 MB)
Appendix B: USFS Sediment Source Analysis
- Landslide Assessment (PDF) (23 pp, 104K)
  - Tables for Landslide assessment (PDF) (14 pp, 29K)
  - Maps (PDF) (2 pp, 1.4 MB)
- Small Source Study (PDF) (37 pp, 287K)

Summary of comments and responses (PDF) (11 pg, 63K)

Eel River (South Fork) Sediment and Temperature TMDLs

Final TMDL (PDF) (62 pp, 273K)

The following figures are not included in the document:

Figure 5 (PDF) (1 pg, 441K)
Figure 6 (PDF) (1 pg, 80K)
Figure 7 (PDF) (1 pg, 447K)
Figure 13 (PDF) (1 pg, 129K)
Figure 14 (PDF) (1 pg, 461K)
Figure 15 (PDF) (1 pg, 465K)

Eel River (Middle Main) Sediment and Temperature TMDLs

Final TMDL (PDF) (55 pp, 557K)

Figures & Maps (PDF) (10 pp, 853 K)
Appendix A (PDF): Q2ESHADE Temperature Modeling System (93 pp, 9 MB - very large file)
Appendix B (PDF): Sediment Source Analysis (p13 pp, 445K)

Eel River (Upper Main) Sediment and Temperature TMDLs

Final TMDL (PDF) (70 pp, 981K)

Figure 1 (PDF): Major features of the Upper Eel TMDL area (1 pg. map., 128K)
Figure 2 (PDF): Adult Steelhead Returns to Van Arsdale (1 pg. map, 22K)
Figure 3 (PDF): Stream Temperature Modeling Results (1 pg. map, 192K)
Figures 4 & 5 (PDF): Modeled Stream Temperatures from Van Arsdale to Outlet Creek (1 pg, 52K)
Tables III & IV (PDF): Tomki Creek Shade effects on Stream Temperature (1 pg, 42K)
Appendix A (Technical Appendix) (PDF): Development and Application of the Q2ESHADE Temperature Modeling System to the Upper Main Eel River (74 pp, 2,648K)
Appendix B (PDF): Sediment Source Analysis for the Upper Eel River Sediment TMDL (40 pp, 1,122K)
Appendix C (PDF): Sediment Tables for the Entire Watershed and Subwatersheds (29 pp, 847K)

Upper Main Eel Temperature and Sediment TMDLs Comment Responsiveness Summary (PDF) (19 pp, 306K)

Garcia River Sediment TMDL

Final TMDL (PDF) (51 pg, 129K)
Summary of Comments and Responses (PDF) (24 pp,59K)
Additional Comments (PDF) (5 pp, 13K)
Response to Peer Review Comments (PDF) (2 pp, 5K)

Gualala River Sediment TMDL

Final TMDL (PDF) (22 pp, 108K)
Summary of Comments and Responses (11 pg, 26K)

Los Angeles River Watershed Trash TMDL

EPA established this TMDL on March 19, 2002. On August 1, 2002, EPA approved the TMDL submitted by the State of California, which supercedes the EPA-established TMDL.

State-adopted TMDLs for Los Angeles River Watershed Trash TMDL

Lost River Nutrients and pH TMDLs

EPA established these nutrient TMDLs on December 30, 2008.

Final TMDL for Lost River, California Nutrients (PDF) (110 pp, 3.5M)
Appendix A - Report on Lost River Model for TMDL Development, August 2005 (PDF) (234 pp, 4.8M)
Comment Responsiveness Summary (PDF) (106 pp, 454K)

Some technical support documents are provided here since they are referenced in the TMDLs and provide additional clarification.

Mad River Sediment and Turbidity TMDLs

Final TMDL (PDF) (112 pp, 1.74M)
Comment Responsiveness Summary (PDF) (52 pp, 511K)
Sediment Source Analysis (PDF) (173 pp, 13.3M)

Plate 1 - Subwatersheds (3 pp, 3M)
Plate 2 - GMA Sampling Sites (3 pp, 1.9M)
Plate 3 - Mean Annual Precipitation (3 pp, 2.6M)
Plate 4 - Anadromous Distribution (1 pp, 1.8M)
Plate 5 - Land Ownership (1 pp, 1.4M)
Plate 6 - Geology (3 pp, 5.4M)
Plate 7 - Transportation (3 pp, 3.0M)
Plate 8 - Percent Slope (3 pp, 2.8M)
Plate 9 - Landslides pre-1975 (3 pp, 2.9M)
Plate 10 - Landslides post-1975 (3 pp, 3.8M)

Malibu Creek Nutrient and Bacteria

Cover Letter (PDF) (transmittal of final TMDLs to the State of California) (2 pp, 55K)
Final TMDL for Nutrients (PDF) (53 pp, 626K)

Appendix (PDF) (17 pp, 654K)

Final TMDL for Bacteria (PDF) (42 pp, 1.1 MB)

Response to Comments

City of Calabasas (Nutrients and Bacteria (PDF) (3 pp, 27K))
Heal the Bay (Bacteria (PDF) (14 pp, 85K); Nutrients (PDF) (32 pp, 1.2 MB))
Los Angeles County Sanitation District (Nutrients (PDF) (8 pp, 62K))

Los Angeles County Department of Public Works (Bacteria (PDF) (5 pp, 30K); Nutrients (PDF) (5 pp, 37K))
City of Malibu (Bacteria (PDF) (9 pp, 72K); Nutrients (PDF) (11 pg, 128K))
Los Angeles Regional Water Quality Control Board (Bacteria (PDF) (9 pp, 94K); Nutrients (PDF) (8 pp, 141K))
Las Virgenes Municipal Water District (Nutrients (PDF) (26 pp, 863K))
City of Westlake Village (Bacteria (PDF) (4 pp, 28 K PDF); Nutrients (PDF) (3 pp, 52K))

Mattole River Sediment TMDL

Final TMDL (PDF) (44 pp, 433K)

Figure 1-1 (PDF) (1 pg, 930K)
Figure 4-2 (PDF) (1.15 MB)
Figure 4-3 (PDF) (1.16 MB)

Summary of Comments and Responses (PDF) (114K)

Navarro River Sediment and Temperature TMDLs

Final TMDL (PDF) (45 pp, 1.3 MB)
Technical Addendum (PDF) (1 pg, 418K)
Summary of Comments and Responses (PDF) (1 pg, 137K)

Noyo River Sediment TMDL

Final TMDL (PDF) (47 pp, 799K)

Pinto Creek Copper TMDL

Final TMDL (PDF) (47 pp, 155K)
Appendices (PDF) (53 pp, 628K)
Summary of Comments and Responses (PDF) (35 pp, 93K)

Redwood Creek Sediment TMDL

Final TMDL (PDF) (73 pp, 248K) with watershed map (PDF) (1 pg, 226K)
Comment Responsiveness Summary (36 pp, 87KB)

San Diego Creek, Newport Bay Sediment TMDL

EPA established TMDLs for sediment, nitrogen, and phosphorus for Newport Bay and San Diego Creek, CA on April 13, 1998. EPA subsequently approved slightly revised TMDLs submitted by the State of California for sediment, nitrogen, and phosphorus for Newport Bay and San Diego Creek on April 16, 1999. These State-adopted TMDLs supercede the TMDLs previously established by EPA.

State-adopted TMDLs for Los Angeles River Watershed Trash TMDL

San Diego Creek, Newport Bay Toxics TMDL

Final TMDL Document (PDF) (89 pp, 1.4 MB)
Technical Support Documents:

Part A: Relevant Maps (PDF) (11 pg, 1.5 MB)
Part B: Freshwater Flow and Seasonal Variations (PDF) (6 pp, 316K)
Part C: Organophosphate (OP) Pesticides (PDF) (22 pp, 75K)
Part D: Selenium (PDF) (25 pp, 596K)
Part E: Metals (PDF) (32 pp, 542K)
Part F: Organochlorine Compounds (PDF) (20 pp, 135K)
Part G: Chromium and Mercury (PDF) (11 pg, 59K)
Part H: Decision Document (PDF) (37 pp, 303K)
Part I: Responsiveness Summary (PDF) (50 pp, 179K)

Santa Clara River Chlorides TMDL

Final TMDL (PDF) (22 pp, 144K)
Response to Comments (PDF) (12 pp, 98K)

San Gabriel River Metals TMDLs

EPA has established the San Gabriel River Metals TMDLs in lieu of California because of deadlines associated with consent decree. The response to comments document is also available.

Final San Gabriel River TMDLs for Metals and Selenium (PDF) (60 pp, 800K)
San Gabriel TMDL Figures (PDF) (13 pp, 2M)
Response to Comments (PDF) (44 pp, 258K)

Extra technical support documents are also provided here since they are referenced in the Draft TMDLs and therefore they may give additional clarification.

Dry - Weather Modeling Report (PDF) (37 pp, 1.5MB)
– Appendix A (PDF) (4 pp, 108K)
Wet - Weather Modeling Report (PDF) (31 pp, 1MB)
– Appendix A – Hydrology Calibration (PDF) (35 pp, 764K)
– Appendix B – Water Quality Parameters (PDF) (5 pp, 130K)
– Appendix C – Water Quality Analyses for Storm Events (PDF) (4 pp, 38K)
– Appendix D – Water Quality Analyses at Historical Mass Emission Stations (PDF) (17 pp, 175K)

Ten Mile River Sediment TMDL

Final TMDL (PDF) (89 pp, 956K)
Summary of Comments and Responses (PDF) (18 pp, 196K)

Trinity River Sediment TMDL

Final TMDL (PDF) (81 pg, 365K)
The following figures are not included in the document:

figure 1-1 (PDF) (1 pg, 444K)
figure 1-2 (PDF) (1 pg, 362K)
figure 1-3 (PDF) (1 pg, 300K)
figure 1-4 (PDF) (1 pg, 354K)
figure 1-5 (PDF) (1 pg, 189K)

Comment Responsiveness Summary (PDF) (61 pg, 180K)

Trinity River (South Fork) Sediment TMDL

Final TMDL (PDF) (75 pp, 201K)
The following figures are not included in the document:

figure 1 (PDF) (1 pg, 122K)
figure 2 (PDF) (1 pg, 257K)
figure 3 (PDF) (1 pg, 464K)
figure 4 (PDF) (1 pg, 196K)
figure 5 (PDF) (1 pg, 149K)
figure 6 (PDF) (1 pg, 188K)

Comment Responsiveness Summary (34 pp, 112K)

Van Duzen River Sediment TMDL

Final TMDL (PDF) (73 pp, 680K)
The following figures are not included in the document:

figure 1.1 (PDF) (1 pg, 150K)
figure 21 (PDF) (1 pg, 130K)
figure 22 (PDF) (1 pg, 125K)

Top of page

Region 9 Topics and Programs | A-Z Index