I forgot about PAM. Shame on me, since we seem to get more cases than our fair share just a few miles from my house at Lake (un)Pleasant: http://maps.google.com/maps?ie=UTF8&t=h&om=1&z=12&ll=33.91,-112.25&spn=0.001 835,0.004989 Good call, there. A shallow, man-made lake would probably get nice and warm in the summer sun - just like our desert lakes. Did you subscribe to the beachnet listserv? There are plenty of marine shorelines represented, since they signed up a whole bunch of new people at the national conference. I forwarded your review on to them, since I think it's a pretty good literature review and may prove useful to others under similar conditions, and the USDA stuff might be pretty useful, too. bp PS: Just a little bit of PAM fun to share; the CDC has this to say about effective treatments: "Several drugs are effective against Naegleria in the laboratory. However, although a variety of treatments have been used to treat infected persons, their effectiveness is unclear since most infections have still been fatal." Still fatal? The answer seems very clear to me. -----Original Message----- From: Clifton, Clay [mailto:Clay.Clifton@sdcounty.ca.gov] Sent: Thursday, January 04, 2007 12:11 PM To: bpeeples@earth911.org Subject: RE: Final final edits Bob, I think we're done with it (for the time being), but I have saved the USDA Library in my favorites just in case. Here is the summary I put together for my chief. Clay -----Original Message----- From: Bob Peeples [mailto:bpeeples@gsalerts.com] Sent: Thursday, January 04, 2007 11:02 AM To: Clifton, Clay Subject: RE: Final final edits I'm sure that your lake issue is probably all water under the bridge by now (pardon the pun), but I found a pretty good electronic water quality library hosted by USDA for future reference. They have a bunch of queries already built. In the query that I checked for livestock exclusion fencing, there were 35 online article citations and 13 (not online) books listed in the bibliography. http://www.nal.usda.gov/wqic/ bp -----Original Message----- From: Clifton, Clay [mailto:Clay.Clifton@sdcounty.ca.gov] Sent: Thursday, January 04, 2007 10:37 AM To: bpeeples@earth911.org Subject: RE: Final final edits Bob, Hope you had a good New Year. Did you make it to midnight? We made it to 9:30. One last final edit for this text - Wet weather (within three days of significant rain) , based upon the amount rainfall or volume of runoff, characteristics of nearby outlets, and review of wet weather data, water quality at this location is not expected to be contaminated. Can we delete the comma and capitalize the 'b' so it reads. Wet weather (within three days of significant rain) Based upon the amount rainfall or volume of runoff, characteristics of nearby outlets, and review of wet weather data, water quality at this location is not expected to be contaminated. That's it. Thanks. Clay -----Original Message----- From: Bob Peeples [mailto:bpeeples@gsalerts.com] Sent: Friday, December 29, 2006 11:10 AM To: Clifton, Clay Subject: RE: Final edits I think I just finished, except for the "all" edit. The image links are also connected to the big signs now. By the time that you get this, "all" will be fixed. bp -----Original Message----- From: Clifton, Clay [mailto:Clay.Clifton@sdcounty.ca.gov] Sent: Friday, December 29, 2006 12:00 PM To: bpeeples@earth911.org Subject: Final edits Bob, The glossary and pop up information for each site at the beach level (site description + glossary definition for its status) looks really good. Can you also modify the wet weather text for No Data Available to put the "within three days of significant rain" in parenthesis after Wet Weather like it is for the Advisory? And finally, can you delete the word "all" in the Advisory glossary for Wet Weather? Thanks again. Happy New Year! Clay -----Original Message----- From: Clifton, Clay Sent: Thursday, December 28, 2006 1:51 PM To: 'bpeeples@earth911.org' Subject: RE: Updated signs Bob, That looks good just as it is. Except for can you put the "within three days of significant rain" in parenthesis after Wet Weather. <u>Wet weather (within three days of significant rain)</u><br> Based upon the amount rainfall or volume of runoff, characteristics of nearby outlets, and review of wet weather data, water quality at this location is not expected to contaminated. The dry weather reference in Open status is correct. Thanks again. The sign images look much better too. Clay -----Original Message----- From: Bob Peeples [mailto:bpeeples@gsalerts.com] Sent: Thursday, December 28, 2006 1:45 PM To: Clifton, Clay Subject: RE: Updated signs You can check it on the site now. Just realize that I am working on the image links yet. Should the "dry weather" reference in the open status be "wet weather"? -----Original Message----- From: Clifton, Clay [mailto:Clay.Clifton@sdcounty.ca.gov] Sent: Wednesday, December 27, 2006 3:46 PM To: bpeeples@earth911.org Subject: RE: Updated signs Bob, Good thinking. Here's a shot at it. Open: This station is open for swimming and other water recreation. The most recent (no older than seven days) water quality data indicates bacterial levels are within state standards. <br> For beaches next to storm drain, river or lagoon outlets: <u>During dry weather</u> avoid contact with runoff and recreational waters within at least 75 feet from where runoff enters ocean or bay waters. An epidemiological study has correlated urban runoff to an increased risk of illness among ocean users near these outlets.<br> Closed: The County of San Diego Department of Environmental Health issues a water contact <B>closure</B> when an immediate health hazard such as a sewage spill may impact beach water quality. Water samples are collected after the closure is issued to determine when signs can be removed. <BR><BR>These beaches are posted with signs such as the one below.<br><BR><a target="_blank" href="images/CA/SD/closure.gif"><Center><img src="images/CA/SD/closure_sm.gif" border="0"></center></a> Advisory: The County of San Diego Department of Environmental Health (DEH) issues an Advisory to warn of a health risk from swimming in these waters when bacterial levels exceed state standards. Advisories are also issued during the excavation or opening of a coastal outlet when potentially contaminated water is released into the ocean.<BR><a target="_blank" href="images/CA/SD/advisory.gif"><Center><img src="images/signs/CA/SD/advisory_sm.gif" border="0"></center></a><br>For beaches next to storm drain, river or lagoon outlets<br><u>Wet weather</u><br>The DEH will issue a GENERAL ADVISORY to avoid all ocean and bay recreational waters for 72 hours or three days during and after rainfall (> 0.2") due contamination by urban runoff. While many coastal outlets have permanent metal warning signs [pictured], additional temporary signs are not posted for General Advisories.<BR><a target="_blank" href="images/CA/SD/ stormdrain.gif"><Center><img src="images/signs/CA/SD/stormdrain_sm.gif" border="0"></center> No Data Available: <u>Dry weather</u><br> There is no recent sampling data available for this station.<br> <u>Wet weather</u><br> Based upon the amount rainfall or volume of runoff, characteristics of nearby outlets, and review of wet weather data at this location, water quality at this location is not expected to contaminated. What do you think? Clay -----Original Message----- From: Bob Peeples [mailto:bpeeples@gsalerts.com] Sent: Wednesday, December 27, 2006 12:48 PM To: Clifton, Clay Subject: RE: Updated signs Clay, I'm working on the database pointers in our beach status lookup table and I thought you may want to update them since we haven't visited them for a while. One thing that may help is an explanation in the "No Data Available" message about the general advisory situation, so that beach users don't just assume that DEH messed up somehow. I was thinking along the lines of: "This could be because of a sampling or laboratory error in the most recent sampling, but is more likely either due to reduced sampling in the off-season or pending results 72 hours after a general advisory has been lifted." or something like that... Bob Open: This station is open for swimming and other water recreation.<br>Beaches next to storm drain, river or lagoon outlets<br><u>Dry weather:</u><br>Avoid contact with runoff and recreational waters within 75 feet from where runoff enters ocean or bay waters. An epidemiological study has correlated urban runoff to an increased risk of illness among ocean users near these outlets.<br><u>Wet weather:</u><br>The Department of Environmental Health will issue a GENERAL ADVISORY to avoid all ocean and bay recreational waters for 72 hours or three days during and after rainfall (> 0.2") due to contamination by urban runoff. While many coastal outlets have permanent metal warning signs (pictured), additional temporary signs are not posted for General Advisories.<Center><img src="images/signs/CA/SD/stormdrain_sm.gif" border="0"></center> Closed: The San Diego County Department of Environmental Health issues a <B>closure</B> when an immediate health hazard is identified such as a sewage spill. <BR><BR>These beaches are posted with signs such as the one below.<br><BR><Center><img src=" images/CA/SD/closure_sm.gif " border="0"></center></a> Advisory: The San Diego County Department of Environmental Health issues an Advisory to warn of a health risk from swimming in these waters when bacterial levels exceed state standards. Advisories are also issued during the excavation or opening of a coastal outlet when potentially contaminated water is released into the ocean.<BR><Center><img src="images/signs/CA/SD/advisory_sm.gif" border="0"></center></a><br>Beaches next to storm drain, river or lagoon outlets<br><u>Dry weather</u> <br>Avoid contact with runoff and recreational waters within 75 feet from where runoff enters ocean or bay waters. An epidemiological study has correlated urban runoff to an increased risk of illness among ocean users near these outlets.<br><u>Wet weather</u><br>The Department of Environmental Health will issue a GENERAL ADVISORY to avoid all ocean and bay recreational waters for 72 hours or three days during and after rainfall (> 0.2") due to contamination by urban runoff. While many coastal outlets have permanent metal warning signs [pictured], additional temporary signs are not posted for General Advisories.<Center><img src="images/signs/CA/SD/stormdrain_sm.gif" border="0"></center> No Data Available: Currently there is no sampling data available for this station -----Original Message----- From: Clifton, Clay [mailto:Clay.Clifton@sdcounty.ca.gov] Sent: Wednesday, December 27, 2006 11:56 AM To: bpeeples@earth911.org Subject: RE: Updated signs Bob, Cool. Thanks. Clay -----Original Message----- From: Bob Peeples [mailto:bpeeples@gsalerts.com] Sent: Wednesday, December 27, 2006 10:57 AM To: Clifton, Clay Subject: RE: Updated signs I modified these a little by skewing them back to right angles and removing staples and such. I think he has already added them, but I need to change where the pointer in the database points. I'll do that today. -----Original Message----- From: Clifton, Clay [mailto:Clay.Clifton@sdcounty.ca.gov] Sent: Wednesday, December 27, 2006 11:47 AM To: bpeeples@cleanup.org Cc: bpeeples@earth911.org Subject: FW: Updated signs Bob, Happy holidays! Hope you had a good Christmas. Thanks for your help in finding the answer to the fresh water lake health risk question I had. Elizabeth Sams from USEPA had the information I needed. He is probably quite busy (or on vacation) but could you ask Cyrus to update the sign pictures on the web page with the attached files? Have him call me if there are any questions about which sign goes with which type of warning. Thanks. Clay Clay Clifton Environmental Health Specialist II, R.E.H.S. Ocean & Bay Recreational Water Program County of San Diego-Dept. of Environmental Health ph 858-495-5579. fax 858-694-3670 e-mail: clay.clifton@sdcounty.ca.gov www.sdcounty.ca.gov/deh
Attachment:
Fresh Water Lake health risk information.doc
Description: MS-Word document