What is the 'National Special Priority Survey' for sewer pipes?

It is a survey requested by the Ministry of Land, Infrastructure, Transport and Tourism to investigate the deterioration status of sewer pipes.

What are the main challenges faced by local government officials after the survey?

More than 60% have not formulated repair and renewal plans, and over 70% feel challenges in wastewater treatment.

What services does Seisui Kogyo provide?

As water treatment and sludge treatment experts, they support the renewal and reconstruction of sewer pipes and the use of temporary water treatment plants.

What Challenges Lie Beyond the Sewer "5000km Survey"? Over 60% Lack Post-Survey Repair/Renewal Plans, Over 70% of Staff Feel Drainage Treatment is Problematic

Published Apr 10, 2026 10:00 PM ・ Updated Jul 17, 2026 5:41 PM ・ 4 min read ・ Source: PR TIMES

Seisui Kogyo surveyed 104 municipal officials regarding their post-sewer pipe survey responses. The findings revealed that over 60% of municipalities have not established repair/renewal plans after the survey, and over 70% of staff feel challenged by drainage treatment.

Water treatment and sludge treatment expert Seisui Kogyo Co., Ltd. (Headquarters: Chiba City, Wakaba-ku, Representative Director: Kenichi Imoto, hereinafter Seisui Kogyo, https://seisui-kk.com/) has conducted a survey on the response of local governments after the "National Special Priority Survey" of sewer pipelines, targeting 104 municipal officials involved in sewer renewal and reconstruction work.

* Over 70% of municipal officials responded that they feel challenges in drainage treatment during sewer pipe repair and renewal construction periods. * The most common reason for not progressing to repair and renewal was "difficulty in prioritizing areas for countermeasures" at 52.0%. * Regarding the utilization of temporary water treatment plants, 47.1% are in the "contractor selection/quotation acquisition stage" or "already utilizing them."

Survey Overview: * Survey Name: Survey on Local Government Response After Sewer Pipeline "National Special Priority Survey" * Survey Method: Internet survey planned by IDEATECH's research marketing service "Resapii®︎" * Survey Period: March 30, 2026 - April 3, 2026 * Valid Responses: 104 municipal officials involved in sewer renewal and reconstruction related operations.

Note: Proportions are rounded to the second decimal place, so the total may not necessarily be 100%.

Usage Conditions: 1. Please clearly state "Seisui Kogyo Co., Ltd." as the source of the information. 2. When using on a website, please set up the following link as the source. URL: https://seisui-kk.com/

About Half Have Completed the Sewer Pipe "National Special Priority Survey" When asked, "Q1. Has your municipality responded to the 'National Special Priority Survey' of sewer pipes requested by the Ministry of Land, Infrastructure, Transport and Tourism?" (n=104), "The survey is complete, and we are currently analyzing the results" was 32.7%, and "The survey is underway..."

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Source: PR TIMES
Category: Survey
Organizations: IDEATECH

What Challenges Lie Beyond the Sewer "5000km Survey"? Over 60% Lack Post-Survey Repair/Renewal Plans, Over 70% of Staff Feel Drainage Treatment is Problematic

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