There is an alternative. Instead of the dedicated TTY, you can now rely on the National Relay Service for all calls to and from customers who are deaf or have hearing or speech impairments. You will most likely already be receiving calls through the NRS whether or not you are maintaining a TTY.
CPD Exam. The CPD Exam is open book unless otherwise notified. Candidates can bring in up to six (6) reference books into the examination with them. Reference books with notes highlighted or written inside are permitted but loose notes such as extra printed papers or a notebook with written notes are prohibited.
The BOD test measures the amount of oxygen neededto biologically oxidize material in wastewater. Because the rate of biological activitydepends on temperature and complete stabilization may require as long as 20 days, theBOD 5 test has been standardized to conditions of 20Â°C for five days.lternatively, use a factor of 80 mL/mgd. For example, at a flow of 4.1 mgd,the sample volume to be collected is 4.1 mgd 80 mL/mgd 328 mL. 17-26 Operation of Municipal Wastewater Treatment Plants Copyright Â© 2007 Water Environment Federation.