No. It is unlawful to divert flows from their natural path to harm your neighbor's property. Every property owner has a duty to take reasonable care to avoid injury to adjacent property, including avoiding injury through the flow of surface waters. Even though water naturally flows from higher ground to lower ground, both the upper and lower property owners must act reasonably with respect to his or her neighbor's land.
You should work with your neighbors where possible to resolve disputes. If you are unable to resolve your dispute, you may seek assistance from various dispute resolution services, such as Mediation Services. If you have questions regarding your legal rights and responsibilities, consult an attorney. The City does not arbitrate disputes between property owners regarding drainage matters.