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I f the four stress conditions shall be separated by 7 days of The 30-day average volume of the wastewater delivered i design loading (Section 9.2.2.1). to the system shall be within 100%± 10%of the system's rated hydraulic capacity. 9.2.2.2.1 Wash-day stress i 1 NOTE — All dosing days, except those with dosing j The wash-day stress shall consist of three wash-days in requirements less than the daily hydraulic capacity,shall be a'5-day period. Each wash-day shall be separated by a included in the 30-day average calculation. 24-hour period. During a wash-day,the system shall be I loaded at times and capacities similar to those delivered 9.2.4 Color,odor,foam, and oily film assessments I during design loading (Section 9.2.2.1), however during the first two dosing periods per day, the design loading During the 6-month testing and evaluation, a total of 3 r. shall include 3 wash loads (3 wash cycles and 6 rinse effluent samples shall be assessed for color, odor, foam, cycles). and oily film. The assessments shall be conducted on a effluent composite samples selected randomly during the } 9{2.2.2.2 Working-parent stress first phase of design loading (weeks 1-16), the period of 1' lii stress loading (weeks 17-23.5), and the second phase For 5 consecutive days,the system shall be subjected to of design loading (weeks 23.5-26). a working-parent stress. During this stress, the system shall be dosed with 40% of its daily hydraulic capacity 9.3 Sample collection between 6:00 a.m. and 9:00 a.m. Between 5:00 p.m. and 8:00 p.m., the system shall be dosed with the remaining 9.3.1 General 60%of its daily hydraulic capacity, which shall include 1 wash load (1 wash cycle and 2 rinse cycles). 9.3.1.1 A minimum of 96 data days shall be required during system performance testing and evaluation. No 9.2.2.2.3 Power/Equipment failure stress routine service or maintenance shall be performed on the system whether the time period to achieve the 96 data The system shall be dosed with 40%of its daily hydraulic days falls within or exceeds 6 months. capacity between 5:00 p.m. and 8:00 p.m. on the day the power/equipment failure stress is initiated. Power to.the x•3.1.2 All sample collection methods shall be in system shall then be turned off at 9:00 p.m. and dosing accordance with APHA's Standard Methods for the shall be discontinued for 48 hours. After 48 hours, power Examination of Water and Wastewater unless otherwise shall be restored and the system shall be dosed over:a 3 specified. hour period with 60%of its daily hydraulic capacity, which shall include 1 wash load (1 wash cycle and 2 rinse 9.3.1.3 Influent wastewater samples shall be flow- cycles). proportional,24-hour composites obtained during periods of system dosing. Effluent samples shall be flow- 9.2.2.2.4 Vacation stress proportional,24-hour composites obtained during periods of system discharge. 0 the day that the vacation stress is initiated,the system shall be dosed at 35% of its daily hydraulic capacity 9.3.2 Design loading between 6:00 a.m. and 9:00 a.m. and at 25% between 11:00 a.m. and 2:00 p.m. Dosing shall then; be During periods of design loading, daily composite effluent discontinued for 8 consecutive days (power shall continue samples shall be collected and analyzed 5 days a week., to be supplied to the system). Between 5:00 p.m. :and 8:00 p.m.of the ninth day,the system shall be dosed with 9.3.3 Stress loading 60% of its daily hydraulic capacity, which shall include 3 ' wash loads (3 wash cycles and 6 rinse cycles). During stress loading, influent and effluent 24-hour ..i composite samples shall be collected on the day each it stress condition is initiated. Twenty four hours after the ! completion of wash-day, working-parent, and vacation 9.2.3 Dosing volumes stresses, influent and effluent 24-hour composite 01111120151060 This report may not;be reproduced in whole or in part Page 27 of 46 Final Report without the expressed written consent of NSF International, April 2002 �