Joliet, IL Landscaping Rules: Water Restrictions (2026)

City Code Section 31-126(a)(1) sets Joliet's outdoor water conservation schedule. , and is further split by address: lawns at even-numbered addresses may water only on even-numbered calendar days during those hours, while odd-numbered addresses may water only on odd-numbered days. Subsection (a)(2) carves out two exceptions to that schedule. Newly installed sod may be watered within the permitted hours for fourteen consecutive days after installation, but only after the property owner first notifies the director of public utilities that the sod has been installed. Places of public assembly with a capacity of 3,500 people or more may water their lawns outside the standard schedule if they operate under a water plan the director of public utilities has approved.

5(g) of the Illinois Plumbing License Law, 225 ILCS 320. Subsection (d) gives the city manager or a designee authority to further restrict, limit, or prohibit use of the public water supply by executive order, published in a local newspaper, whenever the public welfare requires it, which lets Joliet tighten these hours further during drought or supply emergencies without a full ordinance amendment.