San Luis Rey Monitoring Station

1. San Luis Rey Monitoring Station

5. 2003-2004 Regional Urban Runoff Monitoring Program Update MEC

6. Order 2001-01Program Components • Stream Bioassessment Monitoring • Long-term Mass Loading Station Monitoring • Ambient Bay, Lagoon and Coastal Receiving Waters Monitoring • Dry weather monitoring (ICID Program) • Coastal Storm Drain Outfall Monitoring • Toxic Hot Spots Monitoring

7. Santa Margarita

8. Santa Margarita Santa Margarita

9. Santa Margarita

10. Santa Margarita Watershed Fecal coliform Total suspended solids (3/5) turbidity (3/5)

11. Bioassessment • Index of Biotic Integrity ratings mostly Fair or Good. • Highest taxa richness - IBI scores were close to some of the reference site scores.

12. ABLM • Low chemistry (metals) concentrations • No sediment toxicity • Benthic community similar to other embayments

13. San Luis Rey

14. San Luis Rey

15. San Luis Rey

16. San Luis Rey Watershed • Total dissolved solids

17. Bioassessment – San Luis Rey • Index of Biotic Ratings of Very Poor for both sites and both surveys. The in-stream physical habitat of these sites was marginal, which could be limiting, but the sites are quite similar to the Santa Margarita site on Camp Pendleton (which had a substantially higher IBI score), indicating water quality may also have been a factor. .

18. ABLM – San Luis Rey • 6 metals and 10 PAHs - all at very low concentrations. Very low mean ERM-Q. • Sediment toxicity • Benthic community indices suggested that the biotic community in the Estuary sediments was poor compared to other embayments in San Diego County. Based on these results, San Luis Rey River Estuary ranked third best for sediment quality among the coastal embayments in San Diego County.

19. ABLM – Oceanside Harbor • Metals detected – copper and zinc above ERL • Sediment toxicity • Good benthic community

20. Carlsbad

21. Carlsbad

22. Carlsbad

23. Carlsbad – Agua Hedionda Fecal Coliform, TSS, TDS, Turbidity Toxicity only one storm event – Hyalella (last year cerio in all three and hyalella in two events) Trends increasing COD, TKN, total phosphorus, TSS, and turbidity

24. Carlsbad – Escondido Creek Fecal coliform, TDS, Turbidity Diazinon – last four storm events below 0.08 limit. Concentrations 0.06 to 0.03 ug/l No toxicity last two seasons

25. Bioassessment- Carlsbad WMA • Two sites each Agua Hedionda and Escondido Creek • Index of Biotic Integrity Very Poor at all four sites.

26. ABLM – Carlsbad WMA Buena Vista Lagoon • 6 metals - low compared to ERL and ERM values. Concentrations of all the metals were below their respective ERLs except copper. • Sediment Toxicity • Only three taxa were found in Buena Vista Lagoon, all of which were freshwater animals. Based on these results, Buena Vista Lagoon ranked last overall among the coastal embayments in San Diego County. This poor ranking is likely due to the influence of fresh water and lack of tidal flushing in the Lagoon.

27. ABLM – Carlsbad WMA Agua Hedionda Lagoon • six metals detected only copper, exceeded ERL. • Sediment toxicity • Benthic community indices suggested that the biotic community in the Lagoon sediments was fair compared to other embayments in San Diego County.

28. ABLM – Carlsbad WMA Batiquitos Lagoon • 6 metals detected - arsenic and copper exceeded ERLs. • Sediment toxicity • Benthic community indices was good compared to the other embayments. Based on these results, Batiquitos Lagoon ranked seventh overall (tied with Agua Hedionda Lagoon) for sediment quality among the coastal embayments assessed.

29. ABLM – Carlsbad WMA San Elijo Lagoon • 9 metals detected none exceeded ERL value. • Sediment toxicity • Benthic community indices suggested that the biotic community in the Lagoon sediments was poor compared to other embayments in San Diego County. Based on these results, San Elijo Lagoon ranked second to last for sediment quality among the coastal embayments in San Diego County.

30. San Dieguito

31. San Dieguito

32. San Dieguito

33. San Dieguito Total Dissolved Solids

34. Bioassessment – San Dieguito • Green Valley Creek at West Bernardo Drive - Very Poor Spring 03 and Fall 04 • San Dieguito River below Lake Hodges - Poor in October and Very Poor in May.

35. ABLM – San Dieguito • 6 metals detected non above ERL • No sediment toxicity • Poor benthic community

36. Penasquitos

37. Penasquitos

38. Penasquitos

39. Penasquitos Total Dissolved Coliform Fecal Coliform (5/9)

40. Bioassessment - Penasquitos • Los Peñasquitos Creek in Poway - IBI ranking very poor • Carroll Canyon Creek in Sorrento Valley – IBI ranking poor The Carroll Canyon Creek site was rated slightly higher than the upstream site on Los Peñasquitos Creek, possibly due to different watershed areas contributing to the different streams.

41. ABLM - Penasquitos • 6 metals detected, none above ERL • Sediment toxicity • Benthic community indices suggested that the biotic community in the Lagoon sediments was fair. Based on these results, Los Peñasquitos Lagoon ranked near the middle for sediment quality among the coastal embayments in San Diego County.

42. Mission Bay

43. Mission Bay

44. Mission Bay Mission Bay

45. Mission Bay – Tecolote Creek Fecal Coliform, Total Suspended Solids Diazinon - last two storms lower concentrations detected 0.07 and 0.05 ug/l Trends to watch – increasing concentrations of arsenic (dissolved and total) concentrations still below WQO.

46. Bioassessment – Mission Bay • Rose Creek, downstream of Highway 52 – very poor in spring, Poor in fall • Tecolote Creek in Tecolote Canyon Natural Park – Very Poor in spring, Poor in fall

47. ABLM – Mission Bay • 7 of 9 metals were detected with arsenic, copper, and lead exceeding ERL values. • No sediment toxicity • Good benthic community

48. San Diego River

49. San Diego River

50. San Diego River San Diego River