How does water quality within MBNMS compare to applicable water quality standards and relevant indicator parameters?

Concentrations of Dieldrin in mussels over time (CCLEAN)

Cumulative Frequency Distributions – comparing reference to receiving water (SWAMP) Cumulative Distribution Function

What are the concentrations and loads of constituents of concern in discharges to the MBNMS?

From First Flush, 2010 Sites indicated in red exceed Basin Plan objectives Concentrations of zinc in stormwater discharges to the MBNMS

First Flush copper concentrations at each discharge by year

Loads of dieldrin in rivers (green) and wastewater (red) discharges to the MBNMS (From CCLEAN, 2010)

Loads of PBDE in rivers (green and blue) and wastewater (red) discharges to the MBNMS (CCLEAN 2010)

Nitrate loads entering MBNMS from creeks and rivers (CCLEAN)

River and wastewater loads to MBNMS of Nitrate and Ortho- phosphate

What are the specific sources of constituents from the discharges that may be contributing to the identified receiving water problems?

Are biological communities affected by water quality conditions within MBNMS?

Comparing biological community health in reference and non-reference areas Index of Biotic I

Significant statistical relationships between benthic organisms and pollution concentrations Results of stepwise multiple regressions for the effects of total organic carbon (TOC), silt + clay (fines), concentrations of TOC-normalized DDTs, a discharge quotient for the Pajaro River and time on infaunal densities (CCLEAN, 2010)

How are water quality conditions within MBNMS changing over time?

PCB concentrations in Monterey Bay (from CCLEAN)

Mussel Watch trends over time

How are water quality conditions in discharges to MBNMS changing over time?

Nitrate concentrations have been increasing at the Old Salinas River (CCAMP)