[Carol ArmstrongParticipant]

Report for 12/2/19

@griffith, sl167-Angelica Ck-St. Bernadine.  The station began transmitting again on 11/19, but last transmission is 11/25, battery was 3.95 v.  Turbidity was 1400 NTU.

@fenchel, sl191-Schuylkill at Towpath.   Battery is persistently dropping, now at 3.75 v.

[Carol ArmstrongParticipant]

@wang, sl176-Schuylkill R-Bartram’s Gardens.  Both DO values do not appear correct and are unstable.

@fenchel, sl191-Schuylkill R-Towpath.  Battery has dropped below 3.7v.

@wulkowicz, sl249 UT to Plum Run.  Battery dropped lower, <3.5v.

[Chloe WangParticipant]

@armstrong Would problems with DO values be due to fouling? Both myself and Beth Iannelli who helps with sensor cleaning are out of commission for medical reasons until January so will not be able to visit the station. The DO sensor has been reading -9999 periodically since the station was upgraded to 4G, not sure if the new issues are related.

[David BresslerParticipant]

@wang and @armstrong, the DO data are looking pretty weird.  The DO% and DOmg/l are getting intermixed somehow – plot % and mg/L together and you’ll see.  @hicks will probably have ideas on how this needs to be remedied.

The DO sensor does need regular cleaning and values outside of normal ranges will result due to lack of cleaning but the problem I just mentioned is a technical issue that @hicks or @damiano will need to speak to.

 

 

[David BresslerParticipant]

@wang, @armstrong, and @hicks, the temperature from the DO sensor (Zebra-Tech_D-02 D-OptoLog_DOpct: Oxygen, dissolved percent of saturation) also has this weird pattern that is tied in with the two measures of DO.  You can overlay the three parameters and see.

[Carol ArmstrongParticipant]

Report for 12/16/19

@wiki-admin.  Forum entries are in oldest-to-newest chronological order.  Could this be reversed?

@krogers, sl133-Upper Paulinskill-Sussex Coll.  Turbidity is very high and very flashy since 12/9, and when this happens at the stations I monitor, I become concerned that the debris might damage a cable or something else.  Also staff gauge could be affected similarly.

@ferrell, sl189-Independence school, UT to Pike Ck.  No transmissions since 12/9.

@fenchel, sl191, Schuylkill R-towpath.  Battery is dropping, now at 3.5 v.  The DO sensor is not functioning correctly, with abnormal and correlated DO%, DOppm, and temperature measurements.

@weinberg, sl134-Mine Hole.  Battery is below 3.7 v.

@griffith, sl168-Punches Run.  Battery is at ~3.45 v.  Turbidity has remained at ~600 NTU since 12/3/19.

[Carol ArmstrongParticipant]

Report for 12/23/10

@wilson, @troscianecki, sl104, Cherry Upstream.  Battery is dropping and now around 3.7 v.   Sensors are fouled based on elevated and flashy turbidity.

@shanemorgan, sl157, UT Middle run. Something happened during the rain event on 12/17 and turbidity jumped up to where it is now – 1300-1400 NTU.

@melvin, @ruggiero, sl172, Indian Field Branch.  Site began transmitting again on 12/22, with very elevated and flashy turbidity, which is 1,100-1,200 NTU.  Would be helpful to check cause of extreme turbidity values.

@marioni, sl249, UT to Plum Run.  Although the Mayfly has been operating for months with the battery at 3.4 v to 3.6 v, consider recharging the battery.

@wiki-admin.  Correction to my prior question.  Forum <span style=”text-decoration: underline;”>Weekly reports</span> are shown in oldest-to-newest order, and would be more useful if reversed. Thank you!

[Carol ArmstrongParticipant]

Report for 12/31/19.  Best wishes to all in the new year.

@wilson, @troscianecki, sl104-Cherry Creek Upstream.  This site stopped transmitting to MonMW, last battery readings 3.67v-3.76v.

@weinberg, @troscianecki, sl134 – Mine Hole Creek.  Battery dropped during past week, now at 3.5 v.

@moore, @kalusky, sl150 – Marsh Creek at Fairview Rd.  Last transmission on MonMW is 12/26/19.  Battery was >4v and no other signals appeared abnormal.

@anderson, @gosse, @eiannelli, @gisondi, sl151 – Naylor’s Run.  All CTD signals dropped out on 12/27/19.  Battery is rapidly dropping though still >3.7v.

@lemon, @vogt, @reeves, @madden, sl 152, Buckwha Creek Upper.  No signals since 12/30/19 during apparent peak in depth at 308 mm. Turbidity was highly elevated – ~150 NTU. Battery was >4v.

@williams, sl170-Chestnut Run.  No signals transmitted to MonMW since 12/30/19, more than 24 hrs ago.  Battery was >4v.

@melvin, @ruggiero, sl171, Loper Run.  No signals for past 24+ hours, since 12/30/19. Battery was ~4v. Turbidity was extremely elevated – >300 NTU – and flashy, indicating sensors are fouled.

@archer, sl246 – Mill Creek at Silver Lake NC.  Last signal on MonMW was 12/30/19, >24 hrs. ago.  Battery was >4v.  Turbidity was >100 NTU and flashy.

[Carol ArmstrongParticipant]

Report for 1/6/20

Please review the attached notes for information on your stations.

[Carol ArmstrongParticipant]

Report for 1/13/2020

@weinberg, sl134-Mine Hole Brook.  Battery dropped below 3.5v, recovers to 3.55v; lowest it has been in the past year.

@griffith, @seeds, @fisher, sl168 – Punches Run.  Was the station repositioned today?  Turbidity is down to natural levels and battery appears recharged.  However, water depth increased about 40+ cm; was it reset at the same height/pin hole, or was the height change necessitated by moving it to deeper water?

@melvin, @ruggiero, sl171 – Loper Run.  Turbidity is extremely high/flashy, and was naturally cleaned during last rain event from 1100 NTU to 600 NTU.  To protect your station, an inspection would be helpful to look for excessive debris on sensors that could cause damage such as pulling at cables or bending metal or staff gauge, and could alter conductivity values.

 

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