An Indiana utility company fined $900,000 for keeping inaccurate utility maps of its underground natural gas lines.

The Northwest Indiana Times reports that the state utility commission issued notices to Northern Indiana Public Service Company (NIPSCO) for inaccurate utility maps “230 violations involving the timeliness of location services and 31 errors in utility locates stemming from the inaccuracy or inaccessibility of … pipeline maps and records.” The commission also stated that NIPSCO has lacked a “sense of urgency” to modernize the way it updates and maintains its pipeline system.

NIPSCO announced it will improve pipeline safety efforts and has terminated its contract with the company that had been providing underground location services.