The various actions for managing your WaterAlerts, such as SIGNOFF (i.e. cancel/delete/stop), LIST, PAUSE, or CONTINUE are performed by sending an email to wateralert@usgs.gov with a Subject of your subscription ID and the action you want to take.

It is not necessary that you recall your subscription ID. To obtain the complete list of actions, with instructions specific to your WaterAlert ID, simply do the following:

1. Open one of your WaterAlert text or email messages. In it, you will find a unique web link to a set of instructions for managing that subscription. If it is not clickable, copy and paste it into your web browser:
   

   Examples
   Text alert	Email alert

2. Follow your customized instructions or simply click on the link provided within, for the action you want to take.

The U.S. Geological Survey Hydrologic Notification Service, WaterAlert,
sends email or text messages when values measured by USGS
data-collection stations exceed user-definable thresholds.

For Realtime Data from NWISWeb:
http://waterdata.usgs.gov/nwis/uv/

To Sign up for Notifications:
http://water.usgs.gov/wateralert

To manage or obtain information about existing notifications,
send email to wateralert@usgs.gov with a command followed by your
Subscription ID.

To Delete (signoff) this alert:
  * send email to wateralert@usgs.gov with Subject: SIGNOFF hni-ZZZZZ
To Pause this or ALL alerts for 5 days:
  * send email to wateralert@usgs.gov with Subject: PAUSE hni-ZZZZZ 5
    you can change the 5 in the Subject to          PAUSE ALL hni-ZZZZZ
    your preferred number of days to pause.
To Continue (unpause) this or ALL alerts:
  * send email to wateralert@usgs.gov with Subject: CONTINUE hni-ZZZZZ
                                                    CONTINUE ALL hni-ZZZZZ
To List this or ALL settings:
  * send email to wateralert@usgs.gov with Subject: LIST hni-ZZZZZ
                                                    LIST ALL hni-ZZZZZ
For Help:
  * send email to wateralert@usgs.gov with Subject: HELP hni-ZZZZZ
To Change an existing notification frequency
   or threshold                                     Change settings 
  * go to http://water.usgs.gov/wateralert and
    subscribe to the same site and parameter.
    This will update your subscription settings.


Notes:

Email and Text messages are not designed for paging and as such are not
time sensitive; there can be delays in the receipt notifications depending
on the routing.

Standard text messaging rates may apply (for SMS messages).

Frequently Asked Questions:
http://water.usgs.gov/wateralert/help/FAQ.html