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The Minnesota Pollution Control Agency (MPCA) will hold the 78th
annual Wastewater Operations Conference March 25-27 at the Marriott
Northwest in Brooklyn Park.
Highlights include:
-
A & B exam refresher;
- C & D exam refresher;
- Certification examinations; and
- Operator Awards Ceremony
Other topics include leadership, new technology, climate
adaption, stabilization ponds, sewer cleaning and televising, emergency
response, and much more.
In addition, several vendors will have exhibits for participants
to visit.
Based
on comments from permit holders and from MPCA enforcement staff, the agency has
found that its eDMR
calculations are not always accurate. It appears that maximum calendar week
average values for CBOD and TSS may sometimes be calculated incorrectly, especially
for permits that require twice-per-month sampling. There may be problems with
other maximum calculations too.
Because the problems occur randomly, they require more investigation to
resolve. MPCA’s priority at this time is testing and preparing the new eDMR and
calculator services. Because of this priority, corrections to existing services
may take additional time.
Until the MPCA announces that the existing calculations are fixed, the agency
urges you to review the results of all MPCA calculations to ensure you report
valid numbers on your eDMR. Also, be sure to look at the calculated values to
ensure they make sense. For example, if the pH is calculated as 20, that can’t
be correct. Remember to double-check the numbers because no matter the tool used to do the calculations, permitees are still certifying the DMR data.
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