New developments are emerging in the legal battle over the city of Bakersfield's sewer rate increases.Kern County filed a lawsuit against the city in June, challenging a five-year rate plan approved by the city council that will nearly double the annual residential sewer bill this year, with additional increases through 2030.Now, the county says SEIU Local 521 is seeking to join the lawsuit.In a statement to 23ABC, Kern County said, in part, it welcomes the union's participation and continues to argue the city's sewer rate increases are "unlawful and exorbitant."The county also accuses the city of refusing to engage in what it calls "meaningful and collaborative discussions" to find a more affordable solution.The city has previously said the higher rates are needed to pay for major wastewater infrastructure improvements.This story was reported on-air by a journalist and has been converted to this platform with the assistance of AI. Our editorial team verifies all reporting on all platforms for fairness and accuracy.Stay in Touch with Us Anytime, Anywhere: Download Our Free App for Apple and Android Sign Up for Our Daily E-mail Newsletter Like Us on Facebook Follow Us on Instagram Subscribe to Us on YouTube ...read more read less