For Pennsylvania pond and lakefront owners. Every fact carries the date we checked it.
Pond & Shore PAlakepennsylvania.us Check my project
Educational summary, not legal or engineering advice. Confirm with the agency before you start. Checked Oct 4, 2026.

Permit plan · Herbicide, algaecide or pond dye

Your permit plan: Herbicide, algaecide or pond dye

Based on your answers. Cards are in the order you'll usually need them. Checked Oct 4, 2026.

Your answers (change any of them)
  1. Who owns the water and the lakebed? Not sure · change
  2. What do you plan to put in the water? A pond dye · change
  3. Is the dye meant to control algae or weeds? No, only for color · change
  4. Does a stream flow into the pond and out again? No, it's fed by runoff or groundwater only · change
State

Pond dyes

DEP

A pond dye used to control algae or plants (for example by blocking light) needs the joint Chapter 91 permit like any other chemical. A dye used only for color does not, and in a pond fed only by runoff or groundwater it may be applied according to the label. But if a stream flows into the pond and water flows out, dyes and other products that change the water's appearance generally may not be used unless DEP authorizes it.

Checked Oct 4, 2026 · Source: Water Quality Permitting for Pesticide Applications in Pennsylvania: FAQ (rev. Feb 21, 2025), FAQ #25 This may be outdated

Info

Follow the label: the label is the law

The product label

Follow the product label; the label is the law. This site gives no dosing advice. Only products registered with the U.S. Environmental Protection Agency and with the Pennsylvania Department of Agriculture, and labeled specifically for aquatic use, can be listed on the Chapter 91 permit application.

Checked Oct 4, 2026 · Source: Permit Requirement for Use of an Aquatic Herbicide in Ponds (updated Sep 8, 2025) This may be outdated

Also check

Owner

Find out who owns the water

Your deed, the county, or your conservation district

Check your deed and the county tax map, or ask your conservation district. Ownership decides whose approval you need before any state permit.

A summary, not legal or engineering advice. The regulation, the permit documents and the product label control. Confirm with the agency before you start.

Pros for this work

Optional. We use it only to show pros who serve your area. It isn't saved with your plan.

Get this plan as a PDF, $9

Your cards plus a timeline counted back from your start date, a document checklist for each permit, a call list with links, questions to ask contractors and a tracker. Delivered instantly.

This is not a permit or an application. We don't file anything for you. Agency fees are paid only to the agency.

Have a credit code?

Pond & Shore PA plan · lakepennsylvania.us/plan/2h74j · Checked Oct 4, 2026

Get PDF ($9)