If chemicals such as pesticide, fertilizer, herbicides, insecticides, and fungicides are applied to your lawn or landscape plants by a hired professional, they can be watered in according to manufacturer's instructions within 24 to 48 hours of application. Applying water following a chemical treatment by a hired professional is allowable on your non-designated watering day provided a dated chemical advisory marker showing the date of chemical application is visible in the yard (usually by the mailbox). Also, restricted hours must still be followed (before 8 a.m. or after 6 p.m.)

If you wish to apply a chemical treatment to your lawn or landscape plants yourself, the application of water must be done on your designated watering day and time for your address.

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