Cesspool Conversion Services in Honolulu, HI

Honolulu Cesspool Conversion and the 2050 Mandate

Act 125 requires every non-exempt cesspool to be upgraded, converted, or connected to a sewer before January 1, 2050. Act 120 created priority classes with accelerated timelines for Priority 1 and Priority 2. On Oahu, 65% of assessed cesspools, or 4,843, are Priority 1. Honolulu is also extending sewers in Ewa Beach through a $50M project for a neighborhood with about 1,000 cesspools. Call 808-353-8445 for a free estimate and a scheduled 2-hour arrival window.

Signs You Need Cesspool Conversion in Honolulu

• Your cesspool is subject to the January 1, 2050 legal deadline, or an earlier Priority 1 or Priority 2 timeline.
• Sewage surfaces, persistent odors continue, or backups return after pumping.
• A building modification will change wastewater flow.
• You are planning a property sale and want to inspect the system before closing, because the 2050 liability transfers with the property.

Cesspool Conversion Done Right

A conversion is a capital project that permanently replaces a cesspool with a Director-of-Health-approved system, such as septic plus a leach field, an aerobic treatment unit, another approved technology, or a municipal sewer connection. It requires a licensed engineer design, engineer supervision, a Hawaii-licensed contractor in the permitted classifications, and written DOH authorization before use. Engineering takes 4-6 weeks and DOH approval is documented at about 5 weeks before construction. For a free estimate, call 808-353-8445.

Cesspool Conversion Process

1. Assess the site by locating the cesspool, performing a soil percolation test, and reviewing groundwater and separation setbacks under HAR 11-62.
2. Have a licensed engineer create a system design sized at 200 gallons per bedroom per day and a cesspool decommissioning plan.
3. Submit the DOH application and obtain documented approval, which is listed at about 5 weeks.
4. Complete permitting, hire a Hawaii-licensed contractor in the permitted classifications, and arrange engineer supervision.
5. Excavate and install the tank pit, leach field, tank or aerobic treatment unit, piping, and distribution components.
6. Pump the old cesspool empty, then fill or abandon it in accordance with DOH requirements.
7. Complete the final inspection and have the engineer submit the report and as-built plans.
8. Receive written DOH authorization to use the completed system.

What Does Cesspool Conversion Cost in Honolulu?

Hawaii conversion cost data

In Hawaii, DOH data lists cesspool conversion costs from $9,000 to $60,000, with an average of $23,000. A documented Maui conversion was about $20,000 total. An itemized average lists $4,000 for design and permitting, $16,000 for materials, and $15,000 for labor, for $35,000, with a range of $20,000 to $50,000 or more. Site conditions drive the cost.

Hawaii's Cesspool Law: What Act 125 Requires of You

Act 125, enacted in 2017, requires every non-exempt cesspool to be upgraded, converted, or connected to a sewer before January 1, 2050. Act 120, enacted in 2022, set priority classes with accelerated timelines for Priority 1 and Priority 2. New cesspools have been banned statewide since March 22, 2016. Existing cesspools may still be pumped and serviced until the deadline.

EPA 2021 Honolulu-metro tract figures include Round Top-Tantalus 159, Diamond Head 120, Judd Hillside-Lowrey Ave 78 and Priority 1, Kaimuki 65, Makiki Heights 55, Punchbowl 39, Waialae-Kahala 39, and Kapiolani Park 32. The $10,000 state tax credit expired December 31, 2020. The 2023 $5M state grant program, with grants up to $20,000 each, ran out of money in two weeks.

Why Customers Choose Our Team

Hawaii Plumbing Squad has served Oahu since 2018 and has 92 Google reviews. Our On Time Arrival Guarantee is unique in Hawaii: if we miss your scheduled 2-hour arrival window, you get 5% off for every 30 minutes we are late, up to 20% off your service. Our 100% satisfaction guarantee means we make it right - fix the issue or you do not pay if you are not happy.

Honolulu Area Coverage

Hawaii Plumbing & Drain Cleaning Squad serves Honolulu and nearby Kaimuki, Makiki, Nuuanu, and Waikiki. Call 808-353-8445 to book cesspool conversion in Honolulu.

Internal Links

• All Cesspool Conversion Services
• Honolulu Service Area
• Septic Tank Installation in Honolulu
• Sewer Line Repair in Honolulu
• Sewer Camera Inspection in Honolulu

Need help in Honolulu?

If you are planning a cesspool conversion, dealing with a failing cesspool, or need to understand the 2050 deadline, call 808-353-8445 for a free estimate and a scheduled 2-hour arrival window.

Frequently Asked Questions

Do I really have to convert my cesspool?

Yes. Act 125 requires every non-exempt cesspool to be upgraded, converted, or connected to a sewer before January 1, 2050. Act 120 sets priority classes with accelerated timelines for Priority 1 and Priority 2.

What does a cesspool conversion cost in Hawaii?

DOH data lists Hawaii conversion costs from $9,000 to $60,000, with an average of $23,000. Site conditions drive the cost.

Is there a tax credit or grant for cesspool conversion?

The $10,000 state tax credit expired December 31, 2020. The 2023 $5M state grant program ran out of money in two weeks.

Can I keep using my cesspool until 2050?

Existing cesspools may be pumped and serviced until the deadline. New cesspools have been banned statewide since March 22, 2016, and new construction and substantial repairs are prohibited.