Page 194 - California Stormwater Workshop Handouts

ATTACHMENT G

REQUIREMENTS FOR DISCHARGERS WHO HAVE BEEN GRANTED AN
OCEAN PLAN EXCEPTION FOR DISCHARGES TO ASBS

storm. A minimum of one receiving water location shall be sampled in each
ASBS per responsible party in that ASBS. For parties discharging to ASBS in
more than one Regional Water Board region, at a minimum, one reference
station and one receiving water station shall be sampled in each region.

c. Reference and receiving water sampling shall commence during the first full
storm season following the adoption of these special conditions, and post-
storm samples shall be collected during the same storm event when storm
water runoff is sampled. Sampling shall occur in a minimum of two storm
seasons. For those ASBS Dischargers that have already participated in the
Southern California Bight 2008 ASBS regional monitoring effort, sampling
may be limited to only one storm season.

d. Receiving water and reference samples shall be analyzed for the same
constituents as storm water runoff samples. At a minimum, constituents to be
sampled and analyzed in reference and discharge receiving waters must
include oil and grease, total suspended solids, Ocean Plan Table B metals
(provided at the end of this Attachment) for protection of marine life, Ocean
Plan PAHs, pyrethroids, OP pesticides, ammonia, nitrate, phosphates, and
critical life stage chronic toxicity for three species. In addition, within the
range of the southern sea otter, indicator bacteria or some other measure of
fecal contamination shall be analyzed.

Order 2014-0057-DWQ 13