<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<style type="text/css" style="display:none;"> P {margin-top:0;margin-bottom:0;} </style>
</head>
<body dir="ltr">
<div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
The following issues were noted earlier today:<br>
</div>
<div>
<div>
<p><br>
BOU E-Field(2021-04-29): Gaps in both channels 0739-0823 and 0859-0944.<br>
<br>
BSL(2021-04-28): Disturbances in HEZF 1330-1530 from work on the AC system.<br>
<br>
GUA(2021-04-28): Spikes in F at 1620 and 1631.<br>
GUA(2021-04-29): Spike in Z at 1229.<br>
<br>
Dist(2021-04-28): Gap in BSL 1952-2120. Disturbance in BSL as noted above.<br>
</p>
</div>
</div>
</body>
</html>