Protocol for the Collection, Transfer and ANSI/AARST MW-RN 2020 Measurement of Radon in Water 21 SECTION 8.0 REPORTING RESULTS— ALL PROFESSIONAL SERVICES 8.1 All reports—Essential information Essential information that shall be included in reports: a) The complete address of the building measured; b) Name of the professional field service company, contact information, and identification of the measurement professional(s) who are responsible for adherence to protocols and their current certification ID numbers or equivalent state certification ID numbers, as applicable; c) Name of the laboratory or service provider responsible for sample analysis with contact information and current certification ID numbers or equivalent state certification ID numbers, as applicable; and d) Radon Information Sources. Include contact information of the State Radon Office or other local authority for where the test is conducted and information for obtaining federal or state guidance documents. 8.2 All reports—Measurement results Test reports shall be provided that comply with all of the following requirements: a) The test report shall contain the measurement result from each sample processed and the associated error of the measurement result; b) The test report shall contain the final result expressed as the average of duplicate measurement samples for each measurement location and the associated measurement error; c) The test report shall contain the dates and times of the sampling and sample identification numbers; and d) The test report shall provide notice where evaluation of a sample indicates concerns that may have adversely affected test results such as during sample collection, storage, shipping or during laboratory processes. 8.3 Professional field service reports—Measurement results In addition to requirements of Section 8.2 , test reports provided by individuals or companies conducting professional field services shall comply with all of the following requirements: a) The test report shall contain the reason or purpose for the measurement, with the intent to identify the purpose as initial, confirmatory, seasonal or post-mitigation; b) The test report shall contain a description of each sampling location that can be supplemented with diagrams or photographic records; and c) Where the average of duplicate or confirmatory measurement disagree on exceeding the action level and the higher result is twice or more than the lower result, the test report shall contain guidance in accordance Section 7.2.2 b . 8.4 Professional field service reports—Deviations from protocol A description of any observed deviation from this measurement protocol shall be included in the test report. Examples include: a) Discrepancies or peculiarities regarding sample collection (such as an aerator could not be removed, or pressure tanks were present); b) Spigot locations required for meeting this protocol were unavailable or inaccessible; and c) Problems were identified with storage, handling or shipping of samples.