Pre-injection Testing. Prior to the first injection of Biomethane into NW Natural’s LDC System, or other NW Natural owned and operated facilities, the Producer will hire an independent certified third party laboratory (Oregon Environmental Laboratory Accreditation Program [ORELAP] certified, or equivalent in another state, where applicable) to perform two pre-injection tests. Samples for each test will be taken a minimum of fourteen (14) calendar days apart and from the flow of gas to the Receipt Point Facilities prior to receipt of Biomethane at the Receipt Point Facilities. Producer shall provide NW Natural with a minimum of two (2) business days’ advance notice of the Biomethane sampling and NW Natural shall have the option to have a representative present to observe the samples being taken. Samples shall be tested for all Constituents specified in Table 1 in Exhibit C according to the feedstock. Test results shall be shared with NW Natural within five (5) business days of Producer's receipt of the test results.
Pre-injection Testing. Prior to the first injection of Biomethane into the LDC System, or other NW Natural owned and operated facilities, Producer will hire an independent certified third party laboratory (Oregon Environmental Laboratory Accreditation Program [ORELAP] certified, or equivalent in another state, where applicable) to perform two pre-injection tests (“Pre-Injection Testing”). Samples for each test will be taken a minimum of fourteen (14) days apart and from the flow of gas to the Receipt Point Facilities prior to receipt of Biomethane at the Receipt Point Facilities. Producer will provide NW Natural with a minimum of two (2) business days’ advance notice of the Biomethane sampling and NW Natural will have the option to have a representative present to observe the samples being taken. Samples will be tested for all Constituents specified in Table 1 in Exhibit C according to the feedstock. Test results will be shared with NW Natural within five (5) business days of Producer's receipt of the test results. Producer is responsible for identifying an independent third-party certified laboratory that is capable of detecting constituents at levels specified in Table 1 – Constituent Concentrations, attached in Exhibit C. NW Natural reserves the right to specify a certified laboratory in the event Producer is unable to do so. Test results from the second pre-injection test will identify the Group 1 and Group 2 Health Constituents for Periodic Testing. During Pre-Injection Testing, the Biomethane’s collective potential cancer risk and non-cancer risk totals will be calculated for the Group 2 Health Constituents: Cancer Risk: the sum of the ratios for each carcinogenic constituent measured over the Trigger Level identified in Table 1 in Exhibit C. The ratio is the measured value divided by the trigger level (See formula in Table 2 in Exhibit C). Non-Cancer Risk: the sum of the health indexes of each non-carcinogenic constituent that registers over the Trigger Level identified in Table 1 in Exhibit C. The health index is the measured value divided by the Trigger Level multiplied by 0.1 (See formula in Table 2 in Exhibit C). If the collective potential cancer risk or non-cancer risk is at or above the Risk Level A values defined in Table 2 - Collective Risk from Carcinogenic and Non-carcinogenic Constituents, attached in Exhibit C, the Biomethane cannot be accepted or transported by the LDC System. Producer will make necessary modifications to lower the collective potential cance...
