Pinellas County Fertilizer Ban: A Comprehensive Guide to the 4-1-1 Rule

Introduction

In response to growing concerns about the impact of fertilizer runoff on local water quality, Pinellas County has implemented a comprehensive fertilizer ban known as the 4-1-1 Rule. This ordinance, which has been in effect since 2014, aims to reduce nitrogen and phosphorus pollution in the county's waterways, protect marine ecosystems, and enhance public health.

Key Provisions of the 4-1-1 Rule

The 4-1-1 Rule consists of three main provisions:

• Four-Month Fertilizer Ban: Nitrogen and phosphorus fertilizers cannot be applied to turfgrass or other non-agricultural landscapes from June 1st to September 30th.
• One-Pound Nitrogen Limit: No more than one pound of nitrogen per 1,000 square feet can be applied to turfgrass or other non-agricultural landscapes during the allowed application period (October 1st to May 31st).
• One-Foot Setback from Water Bodies: Fertilizers cannot be applied within one foot of any water body, including lakes, rivers, canals, and estuaries.

Rationale for the Fertilizer Ban

Fertilizers contain nitrogen and phosphorus, nutrients that are essential for plant growth. However, excessive amounts of these nutrients can lead to water pollution when fertilizer runoff enters waterways. Nitrogen and phosphorus promote the growth of algae and other aquatic plants, which can deplete oxygen levels in the water and harm fish and other wildlife.

According to the U.S. Environmental Protection Agency (EPA), fertilizer runoff is a major source of nitrogen pollution in Florida's coastal waters. Pinellas County has been particularly affected by this issue due to its proximity to Tampa Bay and the Gulf of Mexico.

Benefits of the Fertilizer Ban

The 4-1-1 Rule has been highly successful in reducing nitrogen and phosphorus pollution in Pinellas County's waterways. Studies have shown that the fertilizer ban has:

• Reduced nitrogen levels in stormwater runoff by up to 50%.
• Reduced phosphorus levels in stormwater runoff by up to 30%.
• Improved water quality in lakes, rivers, and canals.
• Reduced algal blooms and harmful fish kills.
• Protected seagrass beds, coral reefs, and other marine ecosystems.

Enforcement and Penalties

The 4-1-1 Rule is enforced by the Pinellas County Environmental Protection Division. Violations of the ordinance can result in a fine of up to $500 per day.

Exceptions and Exemptions

The 4-1-1 Rule does not apply to:

• Agricultural operations.
• Fertilizers used for the establishment of new turfgrass or the repair of damaged turfgrass.
• Fertilizers used on plants other than turfgrass, such as vegetables, flowers, and shrubs.

Tips and Tricks

To comply with the 4-1-1 Rule and protect water quality, homeowners and lawn care professionals can follow these tips and tricks:

• Use slow-release fertilizers that release nutrients gradually over time.
• Apply fertilizers only when needed, and follow recommended application rates.
• Water lawns deeply and infrequently to encourage healthy root growth and reduce fertilizer runoff.
• Mow lawns at a high setting (3-4 inches) to promote deep root growth and reduce water and fertilizer needs.
• Mulch grass clippings to return nutrients to the soil and reduce fertilizer needs.
• Consider using organic fertilizers, such as compost or manure.

Common Mistakes to Avoid

Some common mistakes to avoid when fertilizing turfgrass include:

• Overfertilizing: Applying more fertilizer than is needed can lead to water pollution and damage to the lawn.
• Applying fertilizer when it is not needed: Fertilizers should only be applied when the lawn shows signs of nutrient deficiency.
• Applying fertilizer too close to water bodies: Fertilizers should not be applied within one foot of any water body.

Step-by-Step Approach to Fertilizing Turfgrass

To properly fertilize turfgrass, follow these steps:

1. Test your soil: Determine the pH and nutrient levels of your soil before fertilizing. This will help you choose the right type of fertilizer and application rate.
2. Choose a slow-release fertilizer: Slow-release fertilizers release nutrients gradually over time, reducing the risk of runoff.
3. Apply fertilizer only when needed: Fertilizers should only be applied when the lawn shows signs of nutrient deficiency.
4. Follow recommended application rates: The recommended application rate will vary depending on the type of fertilizer and the soil conditions.
5. Water deeply and infrequently: Water lawns deeply and infrequently to encourage healthy root growth and reduce fertilizer runoff.
6. Mow lawns at a high setting: Mow lawns at a high setting (3-4 inches) to promote deep root growth and reduce water and fertilizer needs.
7. Mulch grass clippings: Mulch grass clippings to return nutrients to the soil and reduce fertilizer needs.

Conclusion

The Pinellas County Fertilizer Ban is a critical measure to protect water quality, marine ecosystems, and public health. By following the 4-1-1 Rule and implementing best management practices, homeowners and lawn care professionals can help to reduce nitrogen and phosphorus pollution and create a more sustainable environment for future generations.

4-1-1 Rule: Frequently Asked Questions

Q: When is the fertilizer ban in effect?
A: The fertilizer ban is in effect from June 1st to September 30th.

Q: How much nitrogen can I apply to my lawn?
A: No more than one pound of nitrogen per 1,000 square feet can be applied during the allowed application period (October 1st to May 31st).

Q: How far away from water bodies can I apply fertilizer?
A: Fertilizers cannot be applied within one foot of any water body.

Q: What types of fertilizers are exempt from the ban?
A: Fertilizers used for agricultural operations, the establishment of new turfgrass, and the repair of damaged turfgrass are exempt from the ban.

Q: What is the penalty for violating the fertilizer ban?
A: Violations of the fertilizer ban can result in a fine of up to $500 per day.

Tables

Table 1: Nitrogen and Phosphorus Concentrations in Pinellas County Waterways

Table 2: Nitrogen and Phosphorus Loads to Pinellas County Waterways

Table 3: Benefits of the Pinellas County Fertilizer Ban

Table 4: Tips and Tricks for Fertilizing Lawns