You can report her to the attorney general of your state. Materially changing a report or knowingly misrepresenting what was inspected is a felony in most states if there is federal or state money involved. Even misrepresenting the inspector's findings is considered fraud at the very least.
Al
Ok now I get your concern clearly. If this lady you're reporting to is just a co-worker, then you write your concern to your company director / president or someone above her position. State clearly those reports that have been forged. Don't say it bro, write it and keep your letter for your protection. Don't feel sad if you'll be terminated.. if not, just continue sending letter to the president while enjoying your salary. If you're terminated unjustly, then follow Al's advice.
I would start with one level above, her boss. Clearly state what's going on, the fact that you informed her to cease and desist. Show examples. Get commitment from the boss. If not, document each step you took including talking to her boss and outcome.
If that doesn't work, Manager level, then Director level.
Write it all down.