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The aquatic life ammonia standard is dependent on pH and temperature. <br />The detection limit for ammonia is 0.05 mg/1. All values above detection <br />limit are compared to table standards found on this website, page 87: <br />http://www.epa.gov/waterscience/criteria/ammonia/99update.pdf <br />No ammonia excursions occurred this year. <br />The sulfide values provided in Table 4 differ from the values reported <br />in Appendix B. The sulfide data presented in Appendix B are the total of <br />both the ionized (S-) and un -ionized (H2S) forms of hydrogen sulfide. <br />The un -ionized form is the potentially toxic form, and is the basis for <br />the CDPHE water quality standard. A procedure for calculating the un- <br />ionized form may be found on the website: <br />http://www.mullalyengineering.com.au/images/product/file/Problem of Hydr <br />ogen Sulphide in Sewers.pdf page 5, Table 1. The results of those <br />calculations are presented in Table 4 of this AHR. This year, no sulfide <br />excursions occurred. <br />6 <br />