Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_name_71 (state VARCHAR, frequency VARCHAR, city_of_license VARCHAR)

### Question ###
What state is the radio station in that has a frequency of 90.1 FM and a city license in New Castle?

### Accurate SQL ###

SELECT state FROM table_name_71 WHERE frequency = "90.1 fm" AND city_of_license = "new castle"