Clarke Aquatic Services, Inc.
LONG TERM WATER USE RESTRICTIONS
Renovate (triclopyr): Do not use treated water for irrigation for 120 days following application. As an alternative to waiting 120 days, treated water may be used for irrigation once the triclopyr level in the treatment area is determined to be non-detectable by laboratory analysis. Water samples will be taken approximately 3 weeks after treatment. There is no restriction on use of water from the treatment area to irrigate established grasses.
Sonar (fluridone): Do not use treated water for irrigation for 30 days. As an alternative to waiting 30 days, treated water may be used for irrigation once the fluridone level in the treatment area is determined to be 5 parts per billion by laboratory analysis. Water samples will be taken approximately 2 weeks after treatment.
Navigate (2,4-D): Do not use water from treated areas for irrigating plants or mixing sprays for agricultural or ornamental plants, unless and approved assay indicates the 2,4-D concentration is 100 ppb (or less), or only growing crops and non-crops areas labeled for direct treatment with 2,4-D will be affected. Water samples will be taken approximately 3 weeks after treatment. There is no restriction on use of water from the treatment area to irrigate established grasses.
2,4-D (offshore): Shoreline postings with 2,4-D (offshore) means the treatment area is located more then 250' from shore. Follow the water use restrictions posted if you are irrigating within the 2,4-D treatment area. Follow all other water use restriction times as they are posted.
Notice of all pesticide applications shall be posted prior to each application. Notices shall be posted along the shoreline with 81/2 x 11 inch YELLOW posters. They shall indicate the day of treatment, permit number, contact information, exact pesticides used and the water use restrictions (swimming, irrigation and fishing) depending on the pesticides used. In the event of additional pesticide applications, additional notices shall be posted outlining new water use restrictions.
Some postings may be done in advance. How many days in advance will vary between lakes. There is an ADVANCED POSTING box on the poster that will be checked in the event of an advanced posting. If the box is not checked, the application will be made on the same day after the posting.
Posters will be attached to trees, posts, decks, docks and other vertical objects along the immediate shoreline. However, riparian property owners who choose not to have the posters affixed to their personal property may have alternative postings. Within 30 feet of the immediate shoreline, you may supply your own bright YELLOW painted supporting device (stake) at least 30 inches tall and the posters will be stapled to that device. Go to the schedules page to find out when the pesticide applications are to be made.