[George SeedsParticipant]

Carol, yes, SL168 at Punches Run was repositioned today by Michael Griffith. Michael can confirm, but I assume it was repositioned at the previous depth because the depth decreased sharply after the misplacement on 11/27/19 and he made no mention of relocating it.

[Carol ArmstrongParticipant]

Report for 1/20/20.

@wilson, @troscianecki, @reeves, sl103 – Cherry Ck downstream.  The logger stopped transmitting to MonMW on 1/16/20 when the battery was 4.08 v.

@melvin, @ruggiero, sl171 0 Loper run.  Turbidity has been extremely high, up to 1,000 NTU for the past three weeks, indicating the sensors need to be checked.  Blocked sensors can affect validity of conductivity measurements, too.

[Carol ArmstrongParticipant]

Report for 1/27/20

@blanton, sl118-UT to Sandy Run.  Since heavy rain even on 1/26, sensors appear to have become blocked as turbidity is >1200 NTU at all times.

@williams, sl170 – Chestnut Run.  Turbidity data does not look normal possibly due to problem with sensor, because turbidity did not increase at all during 1/26/20 storm, and is significantly below is baseline level as shown at installation.

[Carol ArmstrongParticipant]

Report for 2/3/20

Only problems are ongoing ones – sensors that are fouled; recent late January high intensity rain event may have left sediment on some sensors causing turbidity levels mildly elevated beyond natural levels (saw this on the Pickering sites).  Other ongoing problems are stations that are offline and waiting to be renewed and/or reconnected.

[Carol ArmstrongParticipant]

Report for 2/10/20

SL135 – Montgomery School has gone offline since 2/3/20.  Kline, Kratz, Seeds, and Armstrong are aware, and will check station on 2/11.

[Carol ArmstrongParticipant]

Report for 2/17/20

@bilger, @blanton, @toran, sl118 – UT to Sandy Run.  Water depth reading appears abnormal because it indicated 5.5 meters of water in the UT on 2/15/20.  Water sometimes reads as negative.  Turbidity remains above 1000 NTU whether at high or low water depth.

@lemon, @vogt, sl153, Hunter Ck at Strohl Valley.  Station is now offline. Hicks advises to check that sd card is recording all data.  Hicks is working on importing new 2G board for this station, and for Hunter downstream, which is still transmitting.

@melvin, @ruggiero, sl172, Indian Field Br.  Station transmitting again, but gave abnormal turbidity sensor readings on 2/17/20 when turbidity fluctuated between >600 NTU and 1 NTU over about one hour.

[Carol ArmstrongParticipant]

Report for 2/24/20

@bullard, sl113-Pickering east trib – Turbidity shows sensors are packed or buried, now ~1300 NTU. Let me know if I can help clearing them this week.

@bilger, @blanton, @toran, sl118 – UT to Sandy Run.  Turbidity is so high that the sensors appear to be buried, and should be cleared out and cleaned as soon as possible so as not to damage sensors.

@wang, @iannelli, sl176, Schuylkill R at Bartram’s Gardens.  Station stopped transmitting at 11:10pm on 2/19/20.

[Carol ArmstrongParticipant]

Report for 3/2/20.  The report did not upload for 2/24, though it appeared to.

@bullard, sl113-Pickering east trib.  Water depth appears abnormal on 3/2/20, reduced to 50 mm from morning until afternoon when returned to baseline around 150 mm. Turbidity had been 1300 NTU on 2/27 for a few days, and was naturally cleaned, but turbidity remains elevated during base flow and flashy.

@bilger, @blanton.  sl117-Sandy Run at Roychester Park. Site is back online, but CTD conductivity appears abnormal since 2/28. Conductivity dropped to 0 uS/cm when water dropped to 10.7 mm, and then remained at 0 uS/cm during many changes in depth including a depth of 100 mm.

@mcgrath.  sl155, Ridley Ck U.  In mid February for about five day it looked like turbidity was cleaned every mid day, and then quickly became high. Appears to be drops in conductivity just preceding each drop in turbidity. If this is treated water entering the stream in flushes, why would turbidity drop so much, and then rise back to 20 NTU?

@melvin, @ruggiero. sl171, Loper Run.  Turbidity sensor might be packed in something as it has remained at 2.62 NTU since 2/18. If so, it could affect conductivity measurements.  Also sl172, Indian Field Br, turbidity has remained at ~265 NTU since station was reprogrammed for replaced 2G board 2/12/20.

@wang, @eiannelli, sl176.  Station stopped transmitting on 2/19/20 at 11:10 pm.

[Heather BrooksKeymaster]

@armstrong, the report for 2/24/20 was marked as pending rather than published. I’ve published it for you and backdated it but can’t force it to appear in the proper order in the list of replies.

[Carol ArmstrongParticipant]

Report for 3/30/2020 — No battery problems that were apparent!

@bilger, @blanton, @toran, sl118-UT to Sandy Run.  Turbidity is ~1000 NTU including when stream depth is >100 mm, suggesting that sensors might be debris-packed or buried.

@zador, @hutchinson, @mcgovern, sl130-West Branch Red Clay-Bucktoe Pres.  No online transmission since 3/18/20. Is data being saved on the sd card?

@weinberg, @troscianecki, sl134-Mine Hole Brook.  Conductivity is 0 to 10 uS/cm – is this natural for this site?

@moore, @lmoore, sl149-Marsh Creek-Moore’s Rd.  Turbidity, conductivity, and depth all dropped simultaneously today at 1:10pm, while stream and logger temperatures were continuous. Were sensors repositioned today, and cleaned? Water depth dropped from ~500mm to 6mm. E-conductivity dropped from 148 uS/cm to ~8 uS/cm. Is there a cable problem?

@griffith, @kemp, @seeds, sl279-Angelica Creek-Berks Nature (MSAC2S).  Turbidity is >1000 NTU, and it appears sensors are packed with debris or buried since last big rain event. There are several MWS volunteers assigned to helping with the other Angelica site (MSAC1S), and I do not know who is current and who might help at sl279.

@melvin, @ruggiero, sl171-Loper Run.  Turbidity is increasing, extremely high (>600 NTU), and flashy, unrelated to depth. This indicates sensors are fouled and could affect e-conductivity measurements. Also sl172-Indian Field Br turbidity is extremely high, almost 300 NTU.

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