# 35 Ill. Adm. Code 391.410: Section 391.410 Nutrient Loading

> Illinois · Regulations · In force

URL: https://www.frixlaw.com/law-library/statutes/STATE_IL_IAC_T35_P391_S391_410

## Section

- **Citation:** 35 Ill. Adm. Code 391.410
- **Heading:** Section 391.410 Nutrient Loading
- **Jurisdiction:** Illinois
- **Kind:** Regulations
- **Status:** In force
- **Text as of:** August 14, 2026
- **Source:** Compiled text
- **Location:** Illinois Administrative Code / Title 35 ENVIRONMENTAL PROTECTION / CHAPTER II: ENVIRONMENTAL PROTECTION AGENCY / Part 391 DESIGN CRITERIA FOR SLUDGE APPLICATION ON LAND / Section 391.410 Nutrient Loading

## Text

Section 391
Section 391.410  Nutrient
Loading
Sludge utilization permit
applications must include agronomic calculations which specify the application
rates (dry tons per acre) to be utilized by sludge users.  Unless site specific
information on crop yields is available, the applicants must use the average
county crop yields shown in APPENDIX C in conjunction with the fertilizer
requirements specified in APPENDIX B.  The applicant must determine whether the
sludge application site is to be used on a short term (<5 years) or long
term (>5 years) period and calculate the necessary nitrogen or phosphorus
agronomic rate.  The applicants shall use Sections 391.411, 391.412 and 391.413
for determining the nutrient loading.

## Nearby sections

- [35 Ill. Adm. Code 391.401 Section 391.401  Introduction](https://www.frixlaw.com/law-library/statutes/STATE_IL_IAC_T35_P391_S391_401.md)
- [35 Ill. Adm. Code 391.402 Section 391.402  General Criteria](https://www.frixlaw.com/law-library/statutes/STATE_IL_IAC_T35_P391_S391_402.md)
- [35 Ill. Adm. Code 391.403 Section 391.403  Application Buffer Area](https://www.frixlaw.com/law-library/statutes/STATE_IL_IAC_T35_P391_S391_403.md)
- [35 Ill. Adm. Code 391.404 Section 391.404  Site Characteristics](https://www.frixlaw.com/law-library/statutes/STATE_IL_IAC_T35_P391_S391_404.md)
- [35 Ill. Adm. Code 391.405 Section 391.405  Water Treatment Plant Sludge](https://www.frixlaw.com/law-library/statutes/STATE_IL_IAC_T35_P391_S391_405.md)
- [35 Ill. Adm. Code 391.410 Section 391.410  Nutrient Loading](https://www.frixlaw.com/law-library/statutes/STATE_IL_IAC_T35_P391_S391_410.md)
- [35 Ill. Adm. Code 391.412 Section 391.412  Phosphorus](https://www.frixlaw.com/law-library/statutes/STATE_IL_IAC_T35_P391_S391_412.md)
- [35 Ill. Adm. Code 391.413 Section 391.413  Potassium](https://www.frixlaw.com/law-library/statutes/STATE_IL_IAC_T35_P391_S391_413.md)
- [35 Ill. Adm. Code 391.420 Section 391.420  Heavy Metal Loading](https://www.frixlaw.com/law-library/statutes/STATE_IL_IAC_T35_P391_S391_420.md)
- [35 Ill. Adm. Code 391.430 Section 391.430  Site Monitoring](https://www.frixlaw.com/law-library/statutes/STATE_IL_IAC_T35_P391_S391_430.md)
- [35 Ill. Adm. Code 391.440 Section 391.440  Additional Precautions](https://www.frixlaw.com/law-library/statutes/STATE_IL_IAC_T35_P391_S391_440.md)
- [35 Ill. Adm. Code 391.450 Section 391.450  Land Reclamation Projects](https://www.frixlaw.com/law-library/statutes/STATE_IL_IAC_T35_P391_S391_450.md)

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Source: Frix Law Library, https://www.frixlaw.com/law-library/statutes/STATE_IL_IAC_T35_P391_S391_410. Check the current official text before relying on it. Not legal advice.