2323 ROSS AVE CAL PORTLAND 2019-05-07

The site will be monitored according to conditions S.4.0 of the Construction Stonilwater peiYnit. The site is greater than 5 acres in size, but tllere is no usage of concrete at the site. Therefore according to table 3(in permit, page 10) the site will be monitored weekly for turbidity when discharge occurs. The sample will be taken and analyzed using an approved inethod or an accredited lab. The benchmark standard for turbidity is less than 25 NTU. Measurements of turbidity greater tl�an 25 NTU's will h•igger appi•opriate reportinb and response as outlined in section S.S.G. The sampling location (S 1) is identified in thc site diagram. G: Compliance Reportin� In the event that a stormwater discharge is discovered that is not in compliance with the effluent limits, the event will be reported to Ecology in accordance with General Permit condition SS.F. H. Plan Update This Stormwater Pollution Prevention Plan will be updated if CalPortland discovers that there are any changes in design or operation of the facility that affect stormwater discharges or the information in this plan. Record keeping CalPortland maintains a current copy of the General Permit (including the Notice of Intent), the Erosion and Sediment Control Plan, the Emergency Spill Response Plan, and this Stormwater Pollution Prevention Plan at the CalPortland regional office in Seattle. A DMR will be sub�nitted to Ecolo�y monthly to Ecology by tlle 15`�' of each �nonth. In the event that discharge does not occur, the torm will be marked ND for no discharge. Records will be kept on site (in the water management notebook) for the lifetime of the project and will be retained by Glacier Northwest, Inc. for no less than 3 years following the completion of the project. Certification , . �.___ � � � �� -2 �`�r ��, ,�1�c� i�e c� �nu�'i �� f� Y-- 1 l � 5� i 3 Name 8v Title � Date �